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376213

Sigma-Aldrich

Trimethoxy(octadecyl)silane

technical grade

Synonyme(s) :

Octadecyltrimethoxysilane

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About This Item

Formule linéaire :
CH3(CH2)17Si(OCH3)3
Numéro CAS:
3069-42-9
Poids moléculaire :
374.67
Numéro Beilstein :
5791830
Numéro CE :
221-339-2
Numéro MDL:
MFCD00043060
Code UNSPSC :
12352103
ID de substance PubChem :
24863428
Nomenclature NACRES :
NA.23

Qualité

technical grade

Niveau de qualité

100

Forme

liquid

Indice de réfraction

n20/D 1.439 (lit.)

Pf

16-17 °C (lit.)

Densité

0.883 g/mL at 25 °C (lit.)

Chaîne SMILES 

CCCCCCCCCCCCCCCCCC[Si](OC)(OC)OC

InChI

1S/C21H46O3Si/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-25(22-2,23-3)24-4/h5-21H2,1-4H3

Clé InChI

SLYCYWCVSGPDFR-UHFFFAOYSA-N

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Catégories apparentées

Description générale

Trimethoxy(octadecyl)silane (OTMS) is an alkyl silane that functionalizes a variety of nanoparticle surfaces and facilitates a hydrophobic coating with a high-water contact angle and low surface energy.
Trimethoxy(octadecyl)silane (OTS) is an important alkylsilane that can form strong covalent bonds with silicon oxide and serves as a potential lubricant for micro electro mechanical systems (MEMS). OTS is largely used for surface chemical modification, modifying silica resulted in an increased charge carrier mobility for a variety of vacuum deposited and solution cast organic semiconductors.

Application

Magnetic nanoparticles (Fe2O3) can be surface modified with OTMS. It forms a sorbent for the magnetic solid-phase extraction (MSPE) of endocrine disruptors (organochlorine pesticides) from milk samples. It may form a corrosion protective coating on AZ31 magnesium alloy that finds potential application in automotive industry. It may also be used to form a composite with fly ash that can be coated to achieve a superhydrophobic and UV-protected cotton fabric.
OTS is used for the development of self assembled monolayers(SAMs). OTS is also used to modify the silica dielectric surface in organic field effect transistors.

Code de la classe de stockage

10 - Combustible liquids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

284.0 °F - closed cup

Point d'éclair (°C)

140 °C - closed cup

Équipement de protection individuelle

Eyeshields, Gloves, type ABEK (EN14387) respirator filter

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Sun Hong Kim et al.
ACS nano, 13(6), 6531-6539 (2019-05-11)
Both self-healable conductors and stretchable conductors have been previously reported. However, it is still difficult to simultaneously achieve high stretchability, high conductivity, and self-healability. Here, we observed an intriguing phenomenon, termed "electrical self-boosting", which enables reconstructing of electrically percolative pathways
Noncovalent assembly of reduced graphene oxide and alkyl-grafted mesoporous silica: an effective drug carrier for near-infrared light-responsive controlled drug release.
He D, et al.
Journal of Material Chemistry B: Materials for Biology and Medicine, 3(27), 5588-5594 (2015)
Koji Mitamura et al.
The journal of physical chemistry. B, 111(30), 8891-8898 (2007-07-13)
Hydrophobic gold nanorods were fabricated from hydrophilic gold nanorods coated with hexadecyltrimethylammonium bromide by treating with mercaptopropyltrimethoxysilane (MPS) and subsequently octadecyltrimethoxysilane (ODS). The fabrication of the hydrophobic shell went through the process of (1) binding MPS onto the nanorods, (2)
Evaluation of magnetic nanoparticles to serve as solid-phase extraction sorbents for the determination of endocrine disruptors in milk samples by gas chromatography mass spectrometry.
Synaridou M, et al.
Journal of Chromatography A, 1348(27), 71-79 (2014)
Kristen S Wilson et al.
Biomaterials, 26(25), 5095-5103 (2005-03-29)
This study was designed to determine the effect of varying the chemistry of the interfacial phase on critical composite properties in dental nanocomposite materials. Silica nanoparticles were silanized with varying ratios of 3-methacryloxypropyltrimethoxysilane (MPTMS) and octyltrimethoxysilane (OTMS) while keeping the
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