Organofunctional Silane Coupling Agent Vinyltrimethoxysilane (CAS No. 2768-02-7)

Abstract
Vinyltrimethoxysilane (CAS No. 2768-02-7), silane coupling agent SCA-V71M, is a bifunctional organosilane possessing a reactive vinyl group and a hydrolyzable inorganic trimethoxysilyl group. The dual nature of its reactivity allows SCA-V71M to bind chemically to both inorganic materials (e. G. Glass, metals, fillers) and organic polymers (e. G. Thermosets, thermoplastics, elastomers), thus functioning as a crosslinking agent, adhesion promoter and/or surface modifier.
SCA-V71M is a colorless, low-viscosity liquid with a typical aromatic odor.

Identification
Name Vinyltrimethoxysilane
Synonyms (Trimethoxysilyl)ethylene; Ethenyltrimethoxysilane; Trimethoxy(vinyl)silane
Molecular Formula C5H12O3Si
Molecular Weight 148.23
CAS Registry Number 2768-02-7
EINECS 220-449-8

Equivalents
 A-171
 Z-6300/SZ 6300
 KBM-1003
 VTMO
XL 10
 S210
  V4917

Properties
Density 0.97
Boiling point 123 C degree
Refractive index 1.39
Flash point 22 C degree
Water solubility REACTS

Application
Vinyltrimethoxysilane (CAS No. 2768-02-7), silane coupling agent SCA-V71M, is an important additive for many applications. Examples are:
1. Emulsion polymerization: As a monomeric vinyl functional silane in vinyl, vinyl acrylic and acrylic resin, this vinyl silane can be added as monomers during emulsion during polymerization to form silane modified latexes. The silane in such latexes functions as crosslinkers, forming very stable Si-O-Si chain.
2. Silane crosslink polymers: This vinyl silane can also grafted to select unsaturated polymers such as PE, PET and Styrene-Butadiene co-polymer, via moisture cure mechanism. These vinyl silane crosslinked polymers represent good resistant to high temperature and excellent mechanic strength.
3. Adhesives, sealants and hot melt: Excellent adhesion to a wide range of inorganic substrates such as metal, glass and concrete, the suitable resins include acrylic, vinyl and vinyl acrylic.