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440221

Sigma-Aldrich

Vinyltrimethoxysilane

97%

Synonym(s):

(Trimethoxysilyl)ethylene, Ethenyltrimethoxysilane, Trimethoxy(vinyl)silane

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About This Item

Linear Formula:
H2C=CHSi(OCH3)3
CAS Number:
2768-02-7
Molecular Weight:
148.23
Beilstein/REAXYS Number:
1099136
EC Number:
220-449-8
MDL number:
MFCD00008605
UNSPSC Code:
12352103
PubChem Substance ID:
24867578
NACRES:
NA.23

assay

97%

form

liquid

refractive index

n20/D 1.392 (lit.)

bp

123 °C (lit.)

density

0.968 g/mL at 25 °C (lit.)

SMILES string

CO[Si](OC)(OC)C=C

InChI

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

InChI key

NKSJNEHGWDZZQF-UHFFFAOYSA-N

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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.

Application

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.

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Flam. Liq. 2 - Skin Sens. 1B

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

71.6 °F - closed cup

flash_point_c

22 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Certificates of Analysis (COA)

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Synthesis and characterization of PEDOT: P (SS-co-VTMS) with hydrophobic properties and excellent thermal stability
Cho W, et al.
Polymers, 8(5), 189-189 (2016)
Preparation of morphology-controlled fluoroalkyl end-capped vinyltrimethoxysilane oligomeric silica/magnesium oxide nanocomposite particles: development of magnesium oxide nanocomposite particles possessing a water-resistance ability.
Oikawa Y, et al.
Journal of Sol-Gel Science and Technology, 7(25), 1-13 (2018)
Surface modification of ammonium polyphosphate with vinyltrimethoxysilane: Preparation, characterization, and its flame retardancy in polypropylene.
Qin Z, et al.
Polymer Degradation and Stability, 119, 139-150 (2015)
UV-induced switching behavior of novel fluoroalkyl end-capped vinyltrimethoxysilane oligomer/titanium oxide nanocomposite between superhydrophobicity and superhydrophilicity with good oleophobicity.
Sawada E, et al.
Composites Part B: Engineering, 41(6), 498-502 (2010)
Selective modification of kaolinite with vinyltrimethoxysilane for stabilization of Pickering emulsions.
Liang S, et al.
Applied Clay Science, 161, 282-289 (2018)
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