2768-02-7

Basic information

• Product Name: Vinyltrimethoxysilane
• Synonyms: (TRIMETHOXYSILYL)ETHYLENE;TRIMETHOXYVINYLSILANE;VTMO;VINYLTRIMETHOXYSILANE;ETHENYLTRIMETHOXYSILAN;DOW CORNING(R) PRODUCT Q9-6300;(trimethoxysilyl)ethene;a171
• CAS NO: 2768-02-7
• Molecular Formula: C₅H₁₂O₃Si
• Molecular Weight: 148.23
• EINECS: 220-449-8
• Product Categories: Silicone series;Functional Materials;Si (Classes of Silicon Compounds);Silane Coupling Agents;Si-O Compounds;Trialkoxysilanes;Vinyl Silanes (Silane Coupling Agents);Vinylsilanes, Allylsilanes;Adhesion Promoters;Coupling Agents;Surface Modifiers;silane
• Mol File: 2768-02-7.mol
• Article Data: 16

Chemical Properties

• Melting Point: 123°C
• Boiling Point: 123 °C(lit.)
• Flash Point: 73 °F
• Appearance: Colorless transparent liquid
• Density: 0.971 g/mL at 25 °C(lit.)
• Vapor Pressure: 16.4mmHg at 25°C
• Refractive Index: n20/D 1.392(lit.)
• Storage Temp.: 2-8°C
• Explosive Limit: 1.1%(V)
• Water Solubility: slightly soluble
• Sensitive: Moisture Sensitive
• BRN: 1099136
• CAS DataBase Reference: Vinyltrimethoxysilane(CAS DataBase Reference)
• NIST Chemistry Reference: Vinyltrimethoxysilane(2768-02-7)
• EPA Substance Registry System: Vinyltrimethoxysilane(2768-02-7)

Safety Data

• Hazard Codes: Xi
• Statements: 10-36/37/38-20
• Safety Statements: 26-36/37/39-37/39-16
• RIDADR: UN 1993 3/PG 2
• WGK Germany: 1
• RTECS: VV6770000
• F: 10-21
• TSCA: Yes
• HazardClass: 3
• PackingGroup: III
• Hazardous Substances Data: 2768-02-7(Hazardous Substances Data)

Usage

Description

Vinyltrimethoxysilane, is used as a polymer modifier via grafting reactions. The resulting pendant trimethoxysilyl groups can function as moisture-activated crosslinking sites. The Silane grafted polymer is processed as a thermoplastic and crosslinking occurs after fabrication of the finished article upon exposure to moisture. Vinyltrimethoxysilane is mainly applied in these aspects: In the preparation of moisture-curing polymers, e.g. polyethylene. Silane crosslinked polyethylene is widely used as cable isolation, and sheathing mainly in low voltage applications as well as for hot water/sanitary pipes and underfloor heating. As a co-monomer for the preparation of different polymers such as polyethylene or acrylics. Those polymers show an improved adhesion to inorganic surfaces and they can also be crosslinked with moisture. As an efficient adhesion promoter for various mineral-filled polymers, improving mechanical and electrical properties especially after exposure to moisture. Improving the compatibility of fillers with polymers, leading to a better dispersibility, reduced melt viscosity and easier processing of filled plastics. Pre-treating of glass, metals, or ceramic surfaces, improve the adhesion of coatings on these surfaces and corrosion resistance. As moisture scavenger, it reacts rapidly with water. This effect is used widely in sealants.

Chemical Properties

Colorless transparent liquid

Uses

VTMS may be used to provide superhydrophobicity to different materials like TiO2, talc, kaolin, magnesium oxide nanoparticles, ammonium phosphate and PEDOT. It modifies the surface by capping the material and creates a protective layer that is water resistant and can be used in major coating industries.

General Description

Vinyltrimethoxysilane (VTMS) is a silane coupling agent with silicon and hydroxyl groups that can be used to enhance the wettability and improve the superhydrophobic characteristics of different composites.

Flammability and Explosibility

Flammable

InChI:InChI=1/C5H12O3Si/c1-5-9(6-2,7-3)8-4/h5H,1H2,2-4H3

Upstream product

• 67-56-1 methanol 
• 75-94-5 trichlorovinylsilane 
• 2487-90-3 trimethoxysilane 
• 74-86-2 acetylene 
• 1634-04-4 tert-butyl methyl ether 

Downstream Products

• 16720-19-7 2-trimethoxysilyl-1-ethyl thioacetate 
• 76301-01-4 methyl-α-trimethoxysilylpropionate 
• 76301-00-3 Methyl 3-(trimethoxysilyl)propionate 
• 111079-92-6 phenyl 2-(trimethoxysilyl)ethyl selenide 
• 7538-45-6 trimethoxy(2-sulfanylethyl)silane 
• 67345-10-2 Bis-<2-(trimethoxysilyl)-ethyl>-sulfid 
• 58392-98-6 Bis-(2-trimethoxysilyl-ethyl)-disulfide 
• 254747-21-2 1,3,5,7,9,11-hexacyclohexyl-14-vinyl-2,4,6,8,10,12,13,15,16-nonaoxa-1,3,5,7,9,11,14-heptasila-tricyclo[7.3.3.1^5,11]hexadecane-3,7,14-triol 
• 26972-40-7 1-vinylbenzimidazole 
• 19689-19-1 5-decene 
• 101967-33-3 trans-1-(trimethoxysilyl)hex-1-ene 
• 70531-02-1 trans-1-phenyl-2-(trimethoxysilyl)ethene 
• 58824-48-9 1-(4-methylphenyl)-2-propen-1-ol 
• 16939-57-4 (E)-buta-1,3-dienylbenzene 

Related news

Creation of coating surfaces possessing superhydrophobic and superoleophobic characteristics with fluoroalkyl end-capped vinyltrimethoxysilane (cas 2768-02-7) oligomeric nanocomposites having biphenylene segments07/18/2019

Fluoroalkyl end-capped vinyltrimethoxysilane oligomeric nanocomposites having biphenylene units [RF-(VM-SiO2)n-RF/Ar-SiO2] were prepared by the sol–gel reaction of the corresponding oligomer [RF-(VM)n-RF] with 4,4′-bis(triethoxysilyl)-1,1′-biphenyl [Ar-Si(OEt)3] under alkaline conditions. RF-...detailed

Evaluation of the influence of experimental parameters in the formation of a vinyltrimethoxysilane (cas 2768-02-7) film on 1010 carbon steel through electrochemical impedance spectroscopy and contact angle techniques07/17/2019

The influence of experimental parameters on the formation of vinyltrimethoxysilane (VTMOS) film to protect 1010 carbon steel against corrosion by electrochemical impedance spectroscopy (EIS) and contact angle measurements was evaluated. Specimens were developed from three 23 factorial designs an...detailed

Modification of silicalite-1 by vinyltrimethoxysilane (cas 2768-02-7) (VTMS) and preparation of silicalite-1 filled polydimethylsiloxane (PDMS) hybrid pervaporation membranes07/16/2019

In preparation of inorganic particles filled polymer membranes, coupling agents can help to improve the compatibility between inorganic filler and polymer matrix. In this paper, surface modification of silicalite-1 was performed by a coupling agent, vinyltrimethoxysilane (VTMS), and hybrid perva...detailed

Selective modification of kaolinite with vinyltrimethoxysilane (cas 2768-02-7) for stabilization of Pickering emulsions07/11/2019

Amphiphilically modified kaolinite was produced by the modification of the octahedral surface of kaolinite with vinyltrimethoxysilane for use in the stabilization of Pickering emulsions. The covalent grafting of the hydrolysate of vinyltrimethoxysilane on the kaolinite octahedral surface resulte...detailed

Relevant articles and documents

Anti-Markovnikov addition of 2-mercaptobenzoxazole and 2-mercaptobenzothiazole to trimethoxy(vinyl)silane under solvent- and catalyst-free conditions

The addition of 2-mercaptobenzoxazole or 2-mercaptobenzothiazole to trimethoxy(vinyl)silane was studied. The thiol-ene reaction leads to previously unknown carbofunctional (trimethoxysilyl)ethyl derivatives of 2-mercaptobenzazoles C6H4N(Y)CS(CH2)2Si(OMe)3 (Y = O, S) with anti-Markovnikov orientation. The proposed mechanism is confirmed by EPR spectroscopy and quantum chemical calculations.

Synthesis of a multifunctional alkoxysiloxane oligomer

An alkoxysiloxane oligomer (1, SiMe[OSi(CHCH2)(OMe)2][OSi(CH2)3Cl(OMe)2]2), containing vinyl and chloropropyl groups, was synthesized as a precursor for sol-gel synthesis. Di-tert-butoxymethylhydroxysilane (t-BuO)2MeSiOH was reacted with (MeO)2(CH2CH)SiCl to form (t-BuO)2MeSiOSi(CHCH2)(OMe)2 which was further alkoxysilylated with Cl(CH2)3SiCl(OMe)2 to form 1. The 1H, 13C, 29Si NMR and HR-MS data confirmed the formation of 1, indicating the successful synthesis of an alkoxysiloxane oligomer possessing different kinds of functional groups by a chemoselective route. Hydrolysis of 1 under acidic conditions was completed in a few hours. The solution state 29Si NMR spectra of samples hydrolyzed and condensed at various reaction times show no signals due to species generated by the cleavage of the siloxane bonds in 1, indicating the validity of the synthesized substance as a precursor for the formation of hybrids with homogeneously distributed functional groups. Intramolecular condensation of 1 to form cyclic trisiloxane units proceeds more preferentially than intermolecular condensation.

METHOD OF PRODUCING A HYDROLYZABLE SILICON-CONTAINING COMPOUND

The present invention provides a safe, inexpensive, and high yield means of producing a hydrolyzable silicon-containing compound, e.g., an organooxysilane and the like. A compound (A) represented by the general formula R1-O-R2 wherein R1 represents a C4-30, substituted or unsubstituted, tertiary alkyl group or aralkyl group and R2 represents a C1-30, substituted or unsubstituted, monovalent hydrocarbyl group or acyl group, is reacted in the presence of a Lewis acid catalyst with a halosilane (B) represented by the general formula R3mSiX4-m wherein R3 represents the hydrogen atom or a C1-30 substituted or unsubstituted monovalent hydrocarbyl group, X is independently bromine or chlorine, and m represents an integer from 0 to 3.