Possible article:
Chloromethyltrimethoxysilane: A Key Building Block for Functional Materials
In the world of materials science, tiny molecules can have big impacts. One such molecule is chloromethyltrimethoxysilane (CMTMS), a versatile organosilane that contains a reactive chloromethyl group and three methoxy groups attached to a silicon atom. Despite its relatively simple structure, CMTMS can participate in a wide range of chemical reactions and be used as a precursor, a coupling agent, a surface modifier, or a crosslinker in various applications. In this article, we will explore the properties, synthesis, uses, and market of CMTMS, and highlight some recent advances and future prospects of this important chemical.
Properties of CMTMS
CMTMS has a molecular formula of C5H13ClO3Si and a molecular weight of 198.7 g/mol. It is a colorless to yellowish liquid with a pungent odor and a boiling point of 147-149 °C at 760 mmHg. It is soluble in organic solvents such as ethanol, acetone, and toluene, but reacts with water to form hydrochloric acid and silanols. CMTMS is a highly reactive and electrophilic compound due to the presence of the chloromethyl group, which can undergo nucleophilic substitution, addition, elimination, or oxidation reactions with various functional groups. The methoxy groups, on the other hand, provide stability and hydrophobicity to the silicon atom, which can bond to surfaces or other molecules through covalent or hydrogen bonds.
Synthesis of CMTMS
CMTMS can be prepared by several routes, including the reaction of chloromethylchlorosilane with methanol in the presence of a catalyst such as sodium methoxide or aluminum chloride, or the reaction of trimethoxysilane with formaldehyde and hydrochloric acid in methanol. Both methods yield CMTMS as the main product, along with some byproducts such as dimethylchlorosilane, trimethylchlorosilane, and tetramethoxysilane. The purity and yield of CMTMS can be improved by distillation, refluxing, or chromatography. INNO SPECIALTY CHEMICALS is a leading manufacturer and supplier of CMTMS and other silanes from China, with high-quality products, competitive prices, and reliable services.
Uses of CMTMS
CMTMS has a wide range of uses in various industries, such as coatings, adhesives, sealants, plastics, rubber, textiles, paper, electronics, and biomedicine. Some of the main applications of CMTMS are as follows:
- Coupling agent: CMTMS can improve the adhesion, wetting, and dispersibility of inorganic materials such as glass, metal, ceramics, and fillers, to organic matrices such as polymers or resins. This is achieved by forming covalent bonds between the methoxy groups of CMTMS and the hydroxyl or carboxyl groups of the surface, and between the chloromethyl group of CMTMS and the reactive groups of the matrix. The resulting composites or hybrids exhibit enhanced mechanical, thermal, and chemical properties, such as tensile strength, modulus, heat resistance, and solvent resistance.n- Crosslinker: CMTMS can crosslink various polymers or resins through the chloromethyl group, which can react with the nucleophilic groups of the polymer chains, such as amino, hydroxyl, or carboxyl groups. This leads to the formation of a network structure that improves the durability, hardness, and stability of the material. For example, CMTMS can be used as a crosslinker for polyurethanes, epoxies, or vinyl esters, to enhance their adhesion, solvent resistance, and water repellency.n- Surface modifier: CMTMS can modify the surface properties of various materials, such as glass, metal, or plastic, by forming a thin and durable layer of organosilane. This layer can reduce the surface energy, increase the hydrophobicity, or introduce specific functionalities, such as antistatic, antimicrobial, or UV-absorbing. This layer can be formed by immersing or spraying the substrate with a solution of CMTMS in an organic solvent, followed by drying or curing. The resulting surface can have improved aesthetics, durability, or functionality, and find uses in automotive, construction, or electronic applications.
Market of CMTMS
CMTMS is a relatively niche chemical, with a global production capacity of around 5000 tons per year, and a market value of about 10 million USD per year. The main producers and suppliers of CMTMS are located in China, Japan, and Europe, with INNO SPECIALTY CHEMICALS being one of the largest and most reliable sources from China. The demand for CMTMS is driven by the growth of various industries that use functional materials, such as coatings, adhesives, and electronics, as well as the increasing awareness of sustainable and eco-friendly products that require less energy, water, or emissions. The future of CMTMS lies in the development of new applications, such as biotechnology, energy storage, or nanotechnology, where the unique properties of CMTMS can be harnessed to create innovative and valuable products.
Conclusion
Chloromethyltrimethoxysilane is a key building block for functional materials, with a wide range of uses in various industries. Its reactive chloromethyl group and stable methoxy groups enable it to participate in various chemical reactions and be used as a precursor, a coupling agent, a surface modifier, or a crosslinker. Its properties, synthesis, uses, and market have been discussed in this article, with a focus on INNO SPECIALTY CHEMICALS as a leading manufacturer and supplier of CMTMS from China. The subject of this article can be summarized as follows: Chloromethyltrimethoxysilane: A Versatile and Valuable Organosilane for Functional Materials.
Location：