1, Chinese name: dimethyl carbonate
English name: dimethyl carbonate
English alias: dimethyl carbonate; Dimethyl carbonate ~ dimethyl carbonate
Molecular formula: C3H6O3(CH3O)2CO
Molecular weight: 90.07
Si Nuo. : 6 16-38-6
Dimethyl carbonate is an important organic synthesis intermediate. Its molecular structure contains functional groups such as carbonyl group, methyl group and methoxy group, and it has various reaction properties. It has the characteristics of safety, convenience, less pollution and easy transportation in production. Dimethyl carbonate has low toxicity and is a "green" chemical product with great development prospect.
2, methacryloyloxyethyl trimethyl ammonium chloride
chemical formula
CH2 = C(CH3)cooch 2ch2 n(CH3)3c 1
brief introduction
The chemical name of DMC is methacryloyloxyethyl trimethyl ammonium chloride. The product is prepared from methacryloyloxyethyl ester by quaternization with methyl chloride. All the quality indexes of the products meet the quality standards of similar products imported from Japan, and can meet the requirements of subsequent processing such as homopolymerization or * * * polymerization. DMC is a cationic monomer, which can be copolymerized or polymerized with other monomers to prepare cationic polymers. This polymer has strong polarity and affinity for anionic substances, so it can be widely used as cationic flocculant. It can be used for sludge dewatering in sewage treatment plants and wastewater treatment in papermaking, coal preparation, printing, dyes and other industries. In addition, DMC can also be used to produce acid-resistant super absorbent resin and oilfield chemicals.
3. Dimethyl cyclosiloxane mixture (DMC for short)
Product category: silicone intermediate.
chemical formula
[(CH3)2SIO]n，n=3，4，5，6
Introduction:
The primary form of dimethylcyclosiloxane is an organic-inorganic compound with dimethyldichlorosilane as the main raw material. Through hydrolysis synthesis, the silicon-oxygen (Si-O) bond is the main chain, and the organic group is directly connected with the silicon atom. The molecular structure of primary dimethyl cyclosiloxane is cyclic, mainly including hexamethylcyclotrisiloxane (D3), octamethylcyclopentasiloxane (D4), decamethylcyclopentasiloxane (D5), dodecamethylcyclohexasiloxane (D6), hexamethylcyclotrisiloxane (D3) and/or octamethylcyclopentasiloxane (D4) and/or decamethylcyclopentasiloxane (D5).
Use:
The primary form of dimethylcyclosiloxane is mainly used for ring-opening polymerization to form silicone oil, silicone rubber and silicone resin with different polymerization degrees. These polymers are further processed into products, which are widely used in various fields, such as architecture, electronics, textiles, automobiles, personal care, food, mechanical processing and so on. There are also a few direct applications.