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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:
Molecular Weight:
148.23
Beilstein:
1099136
EC Number:
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

Quality Level

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

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

71.6 °F - closed cup

Flash Point(C)

22 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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)
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)
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)
Preparation and surface property of fluoroalkyl end-capped vinyltrimethoxysilane oligomer/talc composite-encapsulated organic compounds: application for the separation of oil and water.
Oikawa Y, et al.
ACS Applied Materials & Interfaces, 7(25), 13782-13793 (2015)

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