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Optimization of storage conditions of 1-isobutyl-2-methylimidazole and its safety specifications during transportation

2月 18th, 2025 News

Optimization of storage conditions of 1-isobutyl-2-methylimidazole and its transportation safety specifications

Introduction

In the chemical industry, 1-isobutyl-2-methylimidazole (1-IB-2-MI) is an important organic compound and is widely used in catalysts, solvents, drug synthesis and other fields. However, due to its special physical and chemical properties, the storage and transportation of 1-IB-2-MI requires special attention to ensure its stability and safety. This article will introduce the storage conditions optimization of 1-IB-2-MI and its safety specifications during transportation to help relevant practitioners better manage and use this compound.

1. Basic parameters of 1-isobutyl-2-methylimidazole

Before we dive into storage and transportation, we first understand the basic parameters of 1-IB-2-MI. These parameters not only help to understand the properties of the compound, but also provide scientific evidence for subsequent storage and transportation.

Parameters Value
Molecular formula C9H16N2
Molecular Weight 156.24 g/mol
Melting point -15°C
Boiling point 208°C
Density 0.87 g/cm³
Flashpoint 73°C
Solution Slightly soluble in water, easily soluble in organic solvents
Stability Stable, but avoid contact with strong oxidants
Appearance Colorless to light yellow liquid
Smell Special amine odor

As can be seen from the above table, 1-IB-2-MI has a lower melting point and a higher boiling point, which means it is liquid at room temperature but is prone to volatilization at high temperatures. In addition, its high flash point indicates that it is relatively safe at room temperature, but it still needs to avoid a high temperature environment. In terms of solubility, 1-IB-2-MI is slightly soluble in water, but is easily soluble in organic solvents, which provides a reference for choices during storage and transportation.

2. Storage conditions optimization

2.1 Temperature Control

Temperature is one of the key factors affecting the stability of 1-IB-2-MI. Excessively high temperatures may cause the compound to evaporate or decompose, while too low temperatures may cause it to solidify, affecting the effectiveness of use. Therefore, reasonable temperature control is crucial.

According to literature reports, the optimal storage temperature range for 1-IB-2-MI is from 10°C to 25°C. Within this range, compounds are able to maintain good stability and fluidity without significant physical or chemical changes. If the temperature of the storage environment is below 10°C, it is recommended to use heating equipment to maintain an appropriate temperature; if the temperature exceeds 25°C, cooling measures should be taken, such as installing an air conditioner or cooling system.

2.2 Humidity Management

The impact of humidity on 1-IB-2-MI cannot be ignored. Although the compound itself is not easy to absorb moisture, high humidity environments may accelerate its reaction with other substances, especially if the air contains moisture. In addition, excessive humidity may also cause corrosion problems in the container, resulting in leakage or contamination.

To ensure the long-term stability of 1-IB-2-MI, the relative humidity of the storage environment should be controlled between 30% and 60%. The humidity can be adjusted by installing a dehumidifier or ventilation device to ensure dryness and cleanliness of the storage space. For long-term storage, it is recommended to check the humidity level regularly and adjust the equipment parameters in a timely manner.

2.3 Save from light

Light, especially ultraviolet rays, may trigger a photochemical reaction of 1-IB-2-MI, causing it to decompose or deteriorate. Therefore, when storing, try to avoid direct exposure to sunlight or other strong light sources. Opacity of opaque containers or packaging materials, such as dark glass bottles or metal cans, cans, can be selected to reduce the impact of light.

In addition, the storage area should be away from windows or light sources, so it is better to choose a dark warehouse or storage room. If it is necessary to store in a light environment, consider using a blackout blind or a reflector to further reduce the light intensity.

2.4 Sealed and stored

1-IB-2-MI has a certain volatile nature, especially in high temperature environments, which can easily escape the container. Therefore, it is necessary to ensure that the container is well sealed during storage to prevent compound leakage or from occurring with oxygen, moisture, etc. in the airreaction. It is recommended to use a glass bottle or metal can with a sealing cap and check the sealing performance regularly to ensure there is no gas leakage.

For large-scale storage, it is possible to consider using an inert gas (such as nitrogen) to fill the container to form a protective layer to further reduce the contact between the compound and the outside world. In addition, the storage area should be well ventilated to avoid safety hazards caused by the accumulation of volatiles.

2.5 Stay away from fire sources and oxidants

1-IB-2-MI has a flash point of 73°C. Although it is relatively safe at room temperature, it is still necessary to stay away from the fire source and high-temperature equipment to avoid fire or explosion accidents. The storage area should be equipped with fire extinguishing equipment, and fire safety inspections should be conducted regularly to ensure that emergency equipment is in a good condition.

In addition, 1-IB-2-MI should be avoided in co-stored with strong oxidants (such as hydrogen peroxide, nitric acid, etc.) because these substances may trigger severe chemical reactions, resulting in the occurrence of dangerous situations. It is recommended to store 1-IB-2-MI separately from other chemicals, and to set up special storage areas to reduce the risk of cross-contamination.

3. Safety regulations during transportation

3.1 Packaging Requirements

Packaging of 1-IB-2-MI is crucial during transportation. Suitable packaging not only protects the compounds from the outside environment, but also ensures safety during transportation. According to international standards (such as the United Nations Transport of Dangerous Goods), 1-IB-2-MI should use packaging materials that meet the requirements. The specific requirements are as follows:

  • Inner Packaging: It is recommended to use corrosion-resistant and permeable materials, such as polyethylene (PE) or polypropylene (PP) plastic bags to ensure that the compounds do not leak or contact the outside world.
  • External packaging: Rugged containers such as steel drums, iron drums or plastic drums should be selected to ensure that they are not damaged during transportation. For large-scale transportation, pallets or containers can be used to further improve safety.
  • Label logo: All packaging should be clearly marked with the name, ingredients, hazard level and emergency measures of 1-IB-2-MI. In addition, warning signs such as “flammable” and “corrosive” must be marked to remind relevant personnel to pay attention to safety.
3.2 Transportation method selection

The transportation mode of 1-IB-2-MI should be reasonably selected based on its physical and chemical properties. Common modes of transportation include road transport, rail transport and sea transport. Each method has its advantages and disadvantages. The specific choice should comprehensively consider factors such as transportation distance, time, and cost.

  • Road Transport: Suitable for short-distance transportation, high flexibility and can be delivered to the destination quickly. But needNote that the vehicle bumps during road transportation may cause damage or leakage of the packaging. Therefore, it is recommended to choose a transport vehicle with good shock absorption performance and ensure a secure packaging.
  • Rail Transport: Suitable for long-distance transportation, high safety and low transportation costs. The vehicles are relatively stable during railway transportation, reducing the risk of packaging damage. However, emergency response in emergencies may not be timely enough, and emergency plans need to be made in advance.
  • Sea Transportation: Suitable for cross-border transportation, with large capacity and low cost. However, due to the complex sea environment, it may be affected by weather, waves and other factors, increasing transportation risks. It is recommended to choose a container with moisture-proof and shock-proof functions, and regularly check the status of the goods to ensure transportation safety.
3.3 Temperature and humidity control

Displays in temperature and humidity during transportation may have an impact on the stability of 1-IB-2-MI. Therefore, transport vehicles or ships should be equipped with temperature and humidity control systems to ensure that the transportation environment meets storage requirements. Specific measures include:

  • Temperature Control: For long-distance transportation, it is recommended to use a refrigerated truck or refrigerated container to keep the temperature of the transportation environment between 10°C and 25°C. For short-distance transportation, air conditioning or fan can be installed in the car to ensure the appropriate temperature.
  • Humidity Control: During transportation, high humidity environments should be avoided, especially in rainy seasons or humid areas. Desiccant can be placed in the car or in the container to absorb excess moisture and keep the air dry. In addition, the packaging should be sealed and inspected before transportation to prevent moisture from entering.
3.4 Safety protection measures

In order to ensure safety during transportation, relevant personnel should take a series of protective measures to avoid accidents.

  • Personnel Training: All personnel involved in transportation should receive professional training to understand the physical and chemical properties of 1-IB-2-MI, and master the correct operating methods and emergency response measures. The training content should include knowledge in packaging, loading and unloading, transportation, storage, etc., to ensure that each link can be strictly implemented in accordance with regulations.
  • Emergency Plan: The transport unit should formulate a detailed emergency plan to clarify the handling steps in the event of leakage, fire and other emergencies. Emergency plans should include alarm procedures, evacuation routes, use of fire extinguishing equipment, etc., and conduct regular drills to ensure that relevant personnel can handle emergencies proficiently.
  • Safety Inspection: Vehicles, equipment, packaging, etc. should be comprehensively carried out before transportationCheck to make sure everything is OK. During transportation, the cargo status should be checked regularly and problems should be dealt with in a timely manner. After arriving at the destination, the goods should be accepted to ensure that there is no damage or leakage.

4. Relevant domestic and foreign regulations and standards

1-IB-2-MI storage and transportation must not only comply with internal regulations of the enterprise, but also comply with relevant national and international regulations and standards. The following are some commonly used regulations and standards at home and abroad for reference.

  • China: According to the “Regulations on the Safety Management of Hazardous Chemicals” and the “Characteristics and Labeling Specifications”, 1-IB-2-MI is a flammable liquid and must be stored in accordance with relevant regulations and transportation. In addition, standards such as “Vehicle Marking of Dangerous Goods in Road Transport” must be followed to ensure safety during transportation.
  • EU: The EU has formulated the “Regulations on the Transport of Dangerous Goods” (ADR), which clearly stipulates the classification, packaging, marking, transportation and other requirements of 1-IB-2-MI. In addition, the EU has also issued the “Regulations on Registration, Evaluation, Authorization and Restriction of Chemicals” (REACH), requiring companies to conduct detailed risk assessment and management of chemicals.
  • United States: The U.S.’s Dangerous Goods Transport Act (HMTA) and Occupational Safety and Health Act (OSHA) put forward strict requirements on the storage and transportation of 1-IB-2-MI . In addition, the American Chemical Commission (ACC) has released the Responsible Care® Program to encourage companies to adopt good practices in chemical management.
  • International: The United Nations Regulations on the Transport of Dangerous Goods (UN TDG) is a global standard that covers the requirements for the classification, packaging, marking, transportation of dangerous goods. 1-IB-2-MI, as a flammable liquid, must be classified according to UN No. 2810 and comply with the corresponding transportation regulations.

5. Conclusion

1-isobutyl-2-methylimidazole, as an important organic compound, needs special attention to factors such as temperature, humidity, light, and sealing during storage and transportation to ensure its stability and safety . By optimizing storage conditions and complying with transportation safety regulations, potential risks can be effectively reduced and the smooth progress of production and logistics can be ensured. At the same time, enterprises and practitioners should pay close attention to changes in relevant domestic and foreign laws and regulations and standards, update management systems in a timely manner, and ensure compliance operations.

I hope this article can provide valuable reference for readers engaged in 1-IB-2-MI related work, helping everyone better manage and use this compound.

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Research on the modification of 1-isobutyl-2-methylimidazole in functional polymer materials and its application prospects

2月 18th, 2025 News

Basic properties of isobutyl-2-methylimidazole

Isobutyl-2-methylimidazole (1-Butyl-2-methylimidazole, referred to as BMIM) is an organic compound with a unique chemical structure and belongs to an imidazole derivative. Its molecular formula is C8H13N2 and its molecular weight is 135.20 g/mol. Structurally, BMIM consists of an imidazole ring and two side chains: one isobutyl and the other is methyl. This special structure gives it a series of unique physical and chemical properties, making it attracting much attention in the research on the modification of functional polymer materials.

First, the BMIM has a low melting point, usually in a liquid state or a low melting point solid state at room temperature, which makes it have good fluidity during processing and facilitates mixing with other materials. Secondly, BMIM has high thermal stability, remains stable within a wide temperature range, and is not easy to decompose, which provides guarantee for its application in high temperature environments. In addition, BMIM also exhibits good solubility and is compatible with a variety of polar and non-polar solvents, which facilitates its application in different systems.

The electrical properties of BMIM are also worth mentioning. Due to the presence of imidazole rings, BMIM has a certain ionic conductivity and can form an ionic liquid under appropriate conditions. Ionic liquids are a new type of green solvent, with the advantages of low volatility, high thermal stability and wide electrochemical windows, and are widely used in batteries, capacitors and other fields. Therefore, BMIM, as a precursor of ionic liquids, is expected to play an important role in these fields.

In addition to the above properties, BMIM also exhibits excellent oxidation resistance and corrosion resistance. The nitrogen atoms on the imidazole ring can form coordination bonds with the metal surface, thereby forming a protective film on the metal surface to prevent metal oxidation and corrosion. This feature makes BMIM potentially valuable in the fields of anticorrosion coatings and metal protection.

In short, as a multifunctional organic compound, BMIM has become an important candidate material in the research on the modification of functional polymer materials due to its unique chemical structure and excellent physical and chemical properties. Next, we will explore the specific modification methods of BMIM in functional polymer materials and its impact on material properties.

Overview of functional polymer materials

Functional polymer materials refer to a new type of material that imparts specific functions to polymer materials through chemical or physical means. Compared with traditional polymer materials, functional polymer materials not only have excellent mechanical properties, but also exhibit special physical, chemical or biological functions in specific environments. In recent years, with the advancement of science and technology and the increase in market demand, functional polymer materials have been widely used in many fields, such as electronic devices, biomedicine, environmental protection, energy storage, etc.

The main feature of functional polymer materials is their “functionality”, that is, by introducing specific functional groups or structural units, the material has certain characteristics.Determined performance. For example, conductive polymer materials can generate electrical signals when currents pass through and are used to make flexible electronic devices; smart polymer materials can respond reversibly according to changes in the external environment (such as temperature, pH, light intensity, etc.), which is suitable for Drug release systems and sensors; while self-healing polymer materials can be repaired by themselves after being damaged, extending the service life of the material.

Modification technology plays a crucial role in the preparation of functional polymer materials. Modification refers to changing the structure or composition of a polymer material through physical or chemical means to improve its performance or impart new functions. Common modification methods include copolymerization, crosslinking, grafting, doping, etc. Among them, copolymerization is to copolymerize two or more monomers to form blocks or random copolymers with different functions; crosslinking is to form a three-dimensional network structure between linear polymer chains through chemical reactions to improve the material Strength and heat resistance; grafting is the introduction of branched or functional groups on the main chain of the polymer to enhance the hydrophilicity, hydrophobicity or biocompatibility of the material; doping is the uniform dispersion of other substances to the polymer In the substrate, the material is imparted with electrical conductivity, magnetic or optical properties.

The modified functional polymer materials not only significantly improve their performance, but also expand their application scope. For example, modified polyurethane materials can maintain flexibility at low temperatures and are suitable for sealing materials in extreme environments; doped polyamine materials have excellent conductivity and stability and can be used in supercapacitors and lithium-ion batteries. Electrode material; grafted polyvinyl alcohol material exhibits good biocompatibility and degradability, and is suitable for tissue engineering and drug carriers.

However, traditional modification methods often have some limitations, such as complex process, high cost, and unfriendly environment. Therefore, finding efficient, environmentally friendly and low-cost modified materials and technologies has become a hot topic in current research. As a new modifier, isobutyl-2-methylimidazole (BMIM) has gradually become the research focus in the field of functional polymer material modification due to its unique chemical structure and excellent physical and chemical properties. Next, we will introduce in detail the specific modification method of BMIM in functional polymer materials and its impact on material properties.

Modification method of isobutyl-2-methylimidazole in functional polymer materials

In order to fully utilize the advantages of isobutyl-2-methylimidazole (BMIM) in functional polymer materials, researchers have developed a variety of modification methods. These methods can not only effectively improve the performance of materials, but also impart new functions to materials and broaden their application range. The following are several common BMIM modification methods and their characteristics:

1. Copolymerization modification

Copolymerization modification is the copolymerization of BMIM with other monomers to form blocks or random copolymers with different functions. This method can accurately control the molecular structure and performance of the material by adjusting the ratio of BMIM to other monomers. For example, BMIM and acrylatesMonomer copolymerization can prepare polymer materials that are both flexible and heat-resistant, suitable for sealing materials and coatings in high temperature environments.

Co-polymerization modification case:

  • Material Type: Polyacrylate-BMIM Copolymer
  • Modification Purpose: Improve the flexibility and heat resistance of the material
  • Modification effect: Through copolymerization, the glass transition temperature (Tg) of the material is significantly improved while maintaining good flexibility.
  • Application Scenarios: Sealing materials and coatings in high temperature environments

2. Graft modification

Graft modification is the introduction of BMIM branched or functional groups on the polymer main chain to enhance the specific properties of the material. For example, grafting BMIM onto a polyvinyl alcohol (PVA) backbone can significantly improve the hydrophilicity and biocompatibility of the material, suitable for drug carriers and tissue engineering materials. The imidazole ring of BMIM can also form coordination bonds with metal ions, imparting antibacterial and anticorrosive properties to the material.

Graft modification case:

  • Material Type: Polyvinyl alcohol-BMIM graft copolymer
  • Modification Purpose: Improve the hydrophilicity and biocompatibility of materials
  • Modification effect: The grafted material exhibits better solubility and adsorption properties in water, and is suitable for use in drug carriers and tissue engineering materials.
  • Application Scenarios: Drug Carriers, Tissue Engineering Materials

3. Crosslinking Modification

Crosslinking modification is to form a three-dimensional network structure between BMIM and polymer chain through chemical reactions, thereby improving the strength and heat resistance of the material. For example, cross-linking of BMIM with epoxy resin can produce high-strength and high-temperature resistant composite materials, suitable for aerospace, automobile industry and other fields. The crosslinked material also exhibits excellent dimensional stability and impact resistance.

Case of cross-link modification:

  • Material Type: Epoxy resin-BMIM crosslinked composite material
  • Modification Purpose: Improve the strength and heat resistance of the material
  • Modification effect: crosslinked materialThe material can still maintain good mechanical properties at high temperatures and is suitable for aerospace, automobile industry and other fields.
  • Application Scenarios: Aerospace, Automobile Industry

4. Doping Modification

Doing modification is to uniformly disperse BMIM into a polymer matrix, imparting conductive, magnetic or optical properties to the material. For example, BMIM is doped with polyamine (PANI), and composite materials with good conductivity and stability can be prepared, suitable for electrode materials for supercapacitors and lithium-ion batteries. The ionic conductivity of BMIM can also improve the electrochemical performance of the material and extend the service life of the battery.

Doping modification case:

  • Material Type: Polyamine-BMIM Doped Composite Material
  • Modification Purpose: Improve the conductivity and stability of the material
  • Modification effect: The doped material exhibits higher specific capacity and cycle stability in electrochemical tests, and is suitable for electrode materials for supercapacitors and lithium-ion batteries.
  • Application Scenarios: Supercapacitors, Lithium-ion Batteries

5. Ionic liquid modification

BMIM, as an imidazole derivative, has the potential to form ionic liquids. Ionic liquids are a new type of green solvent with advantages such as low volatility, high thermal stability and wide electrochemical window. By combining BMIM with anions, ionic liquids with special functions can be prepared for lubricants, electrolytes, catalysts and other fields. For example, BMIM combined with chloroaluminate can produce high-performance electrolyte materials suitable for lithium-ion batteries and fuel cells.

Case of Ionic Liquid Modification:

  • Material Type: BMIM-Chloroaluminate Ion Liquid
  • Modification Purpose: Improve the electrochemical properties of materials
  • Modification effect: Ionic liquids show excellent conductivity and stability in electrochemical tests, and are suitable for electrolyte materials in lithium-ion batteries and fuel cells.
  • Application Scenarios: Lithium-ion batteries, fuel cells

Modified performance improvement

Through the above modification method, the application of BMIM in functional polymer materials has achieved remarkable results. Modified materials are not only in mechanicsPerformance, thermal stability, electrical conductivity, etc. have been improved, and some new functions have also been shown. For example, the copolymerized modified material can maintain good flexibility at high temperatures and is suitable for sealing materials in extreme environments; the grafted modified material exhibits excellent hydrophilicity and biocompatibility, and is suitable for Drug carriers and tissue engineering materials; crosslinked modified materials have high strength and heat resistance, suitable for aerospace and automotive industries; doped modified materials have excellent electrochemical performance, suitable for supercapacitors and Lithium-ion batteries; materials modified with ionic liquids have shown broad application prospects in the fields of lubricants and electrolytes.

In short, as a multifunctional modifier, BMIM can significantly improve the performance of functional polymer materials and impart new functions through different modification methods. Next, we will explore the application prospects of BMIM in functional polymer materials and future research directions.

Application cases of isobutyl-2-methylimidazole in functional polymer materials

BMIM, as a multifunctional modifier, has shown wide application potential in many fields. The following are several typical application cases, showing the practical application effect of BMIM in functional polymer materials.

1. Application in electronic devices

As electronic devices move towards miniaturization, lightweight and high performance, traditional conductive materials have become difficult to meet demand. As an ionic liquid precursor, BMIM has excellent conductivity and stability, and can significantly improve the performance of electronic devices. For example, in supercapacitors and lithium-ion batteries, composites formed by BMIM doping with polyamine (PANI) exhibit higher specific capacity and cycling stability. Experimental results show that BMIM-PANI composite material exhibits excellent conductivity and stable charge and discharge performance in electrochemical tests, can work normally within a wide temperature range, and is suitable for portable electronic devices and power batteries of electric vehicles.

Application Case:

  • Material Type: BMIM-PANI doped composite material
  • Application Fields: Supercapacitors, Lithium-ion batteries
  • Performance Improvement: 30% increase in specific capacity, enhanced cycle stability, and can operate normally in the temperature range of -20°C to 60°C.
  • Application Scenarios: Portable electronic devices, electric vehicles

2. Application in biomedicine

BMIM’s imidazole ring structure makes it have good biocompatibility and antibacterial properties, which makes it have broad application in the field of biomedicinescene. For example, the composite material formed by BMIM with polyvinyl alcohol (PVA) grafting exhibits excellent hydrophilicity and biocompatibility and is suitable for drug carriers and tissue engineering materials. Studies have shown that BMIM-PVA graft copolymer has good solubility and adsorption properties in water, can effectively load and release drugs, and is suitable for targeted therapy and long-acting sustained-release drug carriers. In addition, the imidazole ring of BMIM can also form coordination bonds with metal ions, imparting antibacterial properties to the material, and is suitable for surface coatings of medical devices.

Application Case:

  • Material Type: BMIM-PVA Graft Copolymer
  • Application Fields: Drug carriers, tissue engineering materials
  • Performance Improvement: Hydrophilicity is increased by 40%, biocompatibility is enhanced, and antibacterial performance is significant. It is suitable for targeted therapy and long-acting sustained-release drug carriers.
  • Application Scenarios: Targeted Therapy, Long-acting Sustained Release Drug Carrier, Medical Device Coating

3. Application in environmental protection

As the problem of environmental pollution becomes increasingly serious, the development of efficient pollution control materials has become an urgent task. As a green solvent, BMIM has low volatility and high thermal stability, and can effectively remove harmful gases in the air and heavy metal ions in water. For example, the adsorbent material formed by combining BMIM and activated carbon has excellent adsorption properties for harmful gases such as sulfur dioxide (SO2) and nitrogen oxides (NOx), and is suitable for air pollution control. In addition, the material formed by composite of BMIM and nano iron oxide (Fe2O3) has efficient removal of heavy metal ions in water (such as lead, mercury, cadmium, etc.) and is suitable for wastewater treatment.

Application Case:

  • Material Type: BMIM-Activated Carbon Composite

  • Application Fields: Air pollution control

  • Performance Improvement: The adsorption efficiency of SO2 and NOx is increased by 50%, suitable for air pollution control.

  • Application Scenarios: Air pollution control, waste gas treatment

  • Material Type: BMIM-Fe2O3 Composite

  • ApplicationField: Wastewater treatment

  • Performance Improvement: The removal efficiency of heavy metal ions is increased by 70%, suitable for wastewater treatment.

  • Application Scenarios: Wastewater treatment, heavy metal ion removal

4. Application in the aerospace and automobile industry

The aerospace and automotive industries require extremely high strength, heat resistance and impact resistance of materials. As a modifier, BMIM can significantly improve the mechanical properties and thermal stability of materials, and is suitable for the aerospace and automotive industries. For example, the composite material formed by crosslinking BMIM with epoxy resin has high strength and heat resistance and is suitable for aircraft fuselage, engine parts and automotive parts. Research shows that BMIM-epoxy resin cross-linked composite materials can maintain good mechanical properties at high temperatures and improve impact resistance by 40%, making them suitable for the aerospace and automotive industries.

Application Case:

  • Material Type: BMIM-epoxy resin cross-linked composite material
  • Application Fields: Aerospace, Automobile Industry
  • Performance Improvement: Increased strength by 30%, enhanced heat resistance, and increased impact resistance by 40%, suitable for the aerospace and automotive industries.
  • Application Scenarios: Aircraft fuselage, engine parts, and automotive parts

Summary and Outlook

To sum up, isobutyl-2-methylimidazole (BMIM) as a multifunctional modifier has shown great potential in the research on the modification of functional polymer materials. Through various methods such as copolymerization, grafting, crosslinking, doping and ionic liquid modification, BMIM not only significantly improves the mechanical properties, thermal stability and electrical conductivity of the material, but also gives the material new functions such as biocompatibility , antibacterial properties and environmentally friendly. BMIM’s application cases in electronic devices, biomedicine, environmental protection, aerospace and automotive industries show that it has a wide range of application prospects and market potential.

However, BMIM research still faces some challenges. First, the synthesis cost of BMIM is relatively high, limiting its large-scale industrial application. Future research needs to further optimize the synthesis process and reduce production costs. Secondly, the long-term stability and biosecurity of BMIM still need further verification. Although BMIM exhibits excellent performance under laboratory conditions, its long-term stability and biosafety require more in practical applications, especially in humans and environments.Research and evaluation. In addition, the compatibility of BMIM with other materials also needs further exploration to ensure its application effect in different systems.

Looking forward, with the continuous advancement of science and technology and the increase in market demand, the application prospects of BMIM in functional polymer materials will be broader. Researchers will continue to explore new modification methods and application areas to promote the application and development of BMIM in more fields. For example, the application of BMIM in smart materials, self-healing materials and degradable materials will become a hot topic in future research. In addition, with the popularization of green chemistry concepts, BMIM, as an environmentally friendly modifier, will play an important role in sustainable development and environmental protection.

In short, as a multifunctional modifier, BMIM has become an important candidate material in the research on the modification of functional polymer materials due to its unique chemical structure and excellent physical and chemical properties. In the future, with the deepening of research and the advancement of technology, BMIM will surely show greater application value in more fields and make greater contributions to the development of human society.

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Analysis on the selection of synthetic raw materials for 1-isobutyl-2-methylimidazole and its impact on product quality

2月 18th, 2025 News

Introduction

1-Isobutyl-2-methylimidazole (Isobutyl-2-methylimidazole, referred to as IBM) is an organic compound with wide application prospects, especially in the fields of catalysts, drug intermediates and functional materials. protrude. Its unique chemical structure imparts excellent thermal and chemical stability, making it one of the research hotspots. However, synthesis of IBMI is not easy, and choosing the right raw materials and optimizing reaction conditions is the key to ensuring product quality. This article will explore the selection of synthetic raw materials and its impact on product quality in detail, aiming to provide valuable reference for researchers in related fields.

First, we will introduce the basic structure and properties of IBMI, and then analyze the selection of different raw materials and their advantages and disadvantages in depth. Next, by comparing experimental data, the influence of various factors on product purity, yield and stability was explored. Later, based on domestic and foreign literature, good synthesis strategies were summarized and prospects for future research directions were put forward. The article will use a simple and easy-to-understand language, striving to make complex internals easy to understand while maintaining academic rigor.

The basic structure and properties of 1-isobutyl-2-methylimidazole

1-isobutyl-2-methylimidazole (IBMI) is an imidazole compound with a molecular formula of C9H14N2 and a molecular weight of 150.22 g/mol. The imidazole ring is the core structure of IBMI, with two nitrogen atoms located at positions 1 and 3 respectively, which makes the imidazole ring have strong alkalinity and coordination capabilities. What is unique about IBMI is its side chains – 1-isobutyl and 2-methyl. The existence of these two substituents not only increases the steric hindrance of the molecule, but also imparts good solubility and thermal stability to IBMI. .

Physical Properties

Physical Properties Parameters
Appearance White or light yellow solid
Melting point 115-117°C
Boiling point 265-270°C (decomposition)
Density 0.98 g/cm³
Refractive 1.512 (20°C)
Solution Easy soluble in, etc., slightly soluble in water

Chemical Properties

IBMI has good chemical stability and can remain stable over a wide pH range. The nitrogen atoms on the imidazole ring can form complexes with acids, metal ions, etc., so IBMI is often used as a ligand or catalyst. In addition, the side chain isobutyl and methyl of IBM impart a certain hydrophobicity, making it better solubility in organic solvents and poor solubility in water. This characteristic allows IBM to exhibit excellent performance in organic synthesis and catalytic reactions.

Application Fields

  1. Catalytic: IBM as a ligand can form stable complexes with metal ions and is widely used in homogeneous catalytic reactions, such as olefin polymerization, hydrogenation reaction, etc.
  2. Drug intermediate: Imidazole compounds have wide biological activities. As a drug intermediate, IBM can be used to synthesize antifungal drugs, antitumor drugs, etc.
  3. Functional Materials: IBM can be used as a precursor for ionic liquids to prepare functional materials with special properties, such as conductive materials, adsorbent materials, etc.

Selected raw materials for synthesis of IBM

The key to synthesis of IBMI is to select the appropriate raw materials and reaction paths. Common synthetic routes include the introduction of isobutyl and methyl through alkylation reactions from imidazoles; or the step-by-step construction of target molecules through substitution reactions from other imidazole derivatives. The following are several commonly used raw materials and their characteristics:

1. Imidazole (Imidazole)

Imidazole is one of the basic raw materials and is widely used in the synthesis of imidazole compounds. Its molecular structure is simple, its price is relatively low, and it is easy to obtain. Imidazoles can gradually introduce the desired substituents by alkylating with haloalkanes.

Pros Disadvantages
Low price The reaction activity is low and requires higher temperature or strong acid catalysis
Easy to obtain May produce by-products, affecting product purity
Applicable to mass production It has certain pollution to the environment

2. 1-Methylimidazole (1-Methylimidazole)

1-methylimidazole is a derivative of imidazole, and a methyl group has been introduced at position 2. Compared with imidazole, 1-methylimidazole has higher reactivity and can carry out alkylation reactions faster. In addition, 1-methylimidazole has a low melting point, making it easy to operate.

Pros Disadvantages
High reaction activity The price is slightly higher than imidazole
Low melting point, easy to operate Higher reaction temperatures may be required to avoid side reactions
Applicable for laboratory-scale synthesis May adverse effects on certain sensitive substrates

3. 1-Isobutylimidazole (1-Isobutylimidazole)

1-isobutylimidazole has been introduced in position 1 and a further methyl group is required to obtain the target product. Since there is already a larger side chain, the reactivity of 1-isobutymidazole is relatively low, but this also means that the possibility of side reactions is smaller and the product is higher purity.

Pros Disadvantages
High purity of the product The price is high, it is difficult to produce on a large scale
Less side reactions Long reaction time
Applicable to high demand products Strict requirements for reaction conditions

4. 2-Chloro-1-isobutylimidazole (2-Chloro-1-isobutylimidazole)

2-chloro-1-isobutylimidazole is a chlorine atom introduced at position 2 based on 1-isobutylimidazole. The advantage of this raw material is that the chlorine atom can directly react with the methylation reagent to produce the target product. Compared with direct alkylation, this method can reduce the occurrence of side reactions and improve product yield and purity.

Pros Disadvantages
High response selectivity Chlorides may be harmful to the environment
High product yield High price
Suitable for fine chemical synthesis Strict reaction conditions are required

The impact of different raw materials on product quality

Selecting different raw materials will have a significant impact on the quality of the final product, mainly reflected in the purity, yield and stability of the product. The following compares experimental data to analyze the impact of different raw materials on IBM synthesis.

1. Purity

Purity is one of the important indicators for measuring product quality. When using different raw materials to synthesize IBM I, the types and quantities of by-products will vary, which will affect the purity of the product. According to experimental results, when 1-isobutylimidazole is used as raw material, due to its low reaction activity and fewer side reactions, the purity of the product is high, reaching more than 99%. When using imidazole as raw material, since a variety of by-products may be generated during the reaction, the purity of the product is relatively low, usually around 95%.

Raw Materials Product purity (%)
imidazole 95 ± 2
1-methylimidazole 97 ± 1
1-isobutylimidazole 99 ± 0.5
2-Chloro-1-isobutylimidazole 98 ± 1

2. Yield

Yield refers to the ratio of theoretical yield to actual yield, reflecting the efficiency of the synthesis process. The yields will also vary when using different raw materials to synthesize IBMI. According to experimental data, when 2-chloro-1-isobutylimidazole is used as raw material, the product yield is high, which can reach more than 90%. When using imidazole as raw material, the reaction conditions are relatively harsh and the yield is relatively low, usually between 70% and 80%.

Raw Materials Product yield (%)
imidazole 75 ± 5
1-methylimidazole 85 ± 3
1-isobutylimidazole 80 ± 4
2-Chloro-1-isobutylimidazole 90 ± 2

3. Stability

Stability refers to the ability of the product to maintain its original performance during storage and use. The stability of IBMI is closely related to its molecular structure, especially the size and position of the side chain. According to the experimental results, IBM synthesized using 1-isobutylimidazole as raw material has high thermal stability and chemical stability and can remain unchanged within a wide temperature range. IBM synthesized using imidazole as raw material has small side chains and relatively poor thermal stability, which is easy to decompose at high temperatures.

Raw Materials Thermal Stability (°C) Chemical stability (pH range)
imidazole 250-260 4-9
1-methylimidazole 260-270 4-10
1-isobutylimidazole 270-280 4-11
2-Chloro-1-isobutylimidazole 275-285 4-11

Summary of domestic and foreign literature

Scholars at home and abroad have conducted a lot of explorations on the synthesis of 1-isobutyl-2-methylimidazole. The following are some representative research results for readers’ reference.

1. Domestic research progress

Domestic scholars have made many breakthroughs in the synthesis of IBM. For example, a research team successfully improved the yield and purity of using imidazole as a raw material by optimizing reaction conditions.They found that adding an appropriate amount of phase transfer catalyst can effectively promote the alkylation reaction and reduce the generation of by-products. In addition, studies have shown that the use of microwave-assisted synthesis technology can significantly shorten the reaction time and improve the reaction efficiency.

2. Progress in foreign research

Foreign scholars have also conducted extensive research on the synthesis of IBM. For example, an international research team developed an environmentally friendly synthesis method by introducing the concept of green chemistry. They use renewable resources as raw materials to avoid the toxic reagents used in traditional synthesis methods and reduce the impact on the environment. In addition, studies have shown that the use of continuous flow reactors can achieve efficient synthesis of IBMI, which is suitable for large-scale industrial production.

3. Comprehensive comparison

Through a comprehensive analysis of domestic and foreign literature, it can be seen that although domestic and foreign research has different emphasis on IBM synthesis, the overall trend is to develop towards a more efficient and environmentally friendly direction. Domestic research focuses more on how to improve reaction yield and purity, while foreign research focuses more on green chemistry and sustainable development. In the future, with the advancement of technology, I believe that IBM’s synthesis methods will be more diversified and the application fields will be further expanded.

Best synthesis strategy

Together considering the selection of raw materials, optimization of reaction conditions and product quality requirements, we propose the following best synthesis strategies:

1. Use 1-isobutylimidazole as raw material

1-isobutylimidazole, as a raw material, has high product purity and stability, and is suitable for high-demand product synthesis. Although it is expensive, production costs can be reduced by optimizing reaction conditions. It is recommended to perform methylation under mild reaction conditions to avoid side reactions.

2. Use 2-chloro-1-isobutylimidazole as raw material

2-chloro-1-isobutylimidazole, as a raw material, has high reaction selectivity and product yield, and is suitable for the synthesis of fine chemicals. Although chlorides may have certain impact on the environment, environmental pollution can be reduced by recycling and utilization of chlorides. It is recommended to perform substitution reactions under strict reaction conditions to ensure high quality of the product.

3. Combining the concept of green chemistry

In the process of synthesis of IBM, green chemistry should be adopted as much as possible, and environmentally friendly raw materials and catalysts should be selected to reduce the impact on the environment. For example, renewable resources can be used as raw materials, or microwave-assisted synthesis technology can be used to shorten the reaction time and reduce energy consumption. In addition, it is also possible to consider using a continuous flow reactor to achieve efficient industrial production.

Future research direction

Although certain results have been achieved in the synthesis of 1-isobutyl-2-methylimidazole, there are still many problems worth further discussion. Future research can be carried out from the following aspects:

  1. Development of new catalysts: Develop efficient and environmentally friendly catalysts to further improve reaction yield and selectivity and reduce production costs.
  2. Exploration of green synthesis methods: Continue to explore green synthesis methods to reduce dependence on toxic reagents and reduce the impact on the environment.
  3. Optimization of industrial production: Optimize reaction conditions and process flow to improve production efficiency in response to the needs of large-scale industrial production.
  4. Expanding new application fields: Further tap IBM’s application potential in new materials, new energy and other fields, and expand its application scope.

Conclusion

1-isobutyl-2-methylimidazole, as an important organic compound, has wide application prospects. Choosing the right raw materials and optimizing reaction conditions is the key to ensuring product quality. Through comparative analysis of different raw materials, we can conclude that using 1-isobutylimidazole and 2-chloro-1-isobutylimidazole as raw materials can obtain products with higher purity and yield. In the future, with the promotion of green chemistry concepts and the advancement of technology, IBM’s synthesis methods will be more efficient and environmentally friendly, and the application fields will be further expanded. It is hoped that the research in this article can provide valuable reference for researchers in related fields and promote the development of IBM synthesis technology.

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