175595
Diethoxydimethylsilane
97%
Synonym(s):
Dimethyldiethoxysilane
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About This Item
Linear Formula:
(CH3)2Si(OC2H5)2
CAS Number:
Molecular Weight:
148.28
UNSPSC Code:
12352103
NACRES:
NA.23
PubChem Substance ID:
EC Number:
201-127-6
Beilstein/REAXYS Number:
1736110
MDL number:
Quality Level
assay
97%
form
liquid
refractive index
n20/D 1.381 (lit.)
bp
114 °C (lit.)
density
0.865 g/mL at 25 °C (lit.)
SMILES string
CCO[Si](C)(C)OCC
InChI
1S/C6H16O2Si/c1-5-7-9(3,4)8-6-2/h5-6H2,1-4H3
InChI key
YYLGKUPAFFKGRQ-UHFFFAOYSA-N
General description
Diethoxydimethylsilane (DEDMS) is an organically modified silicate (ORMOSIL) with two methyl groups in each unit that facilitate the hydrophobic characteristics. It is mainly utilized to functionalize a variety of substrates.
Application
Diethoxydimethylsilane (DMDES) may be used to modify epoxy resin6 and the surfaces of pure silica and Pd/SiO2 hydrogen gas sensors. Surface modification results in enhanced gas sensing properties of the sensors. {43}-{44}Diethoxydimethylsilane may be used as a precursor for the synthesis of ultrafine SiC powder. {45} Studies report its use as a precursor for ORMOSIL (Organically modified SILicates) and thin a-SiOxCyHz films.{47}
The composite of DEDMS and triethoxymethylsilane can be used to synthesize a liquid precursor resin for the preparation of silicon oxycarbide (SiOC). It can form a sol-gel coating on polyamide-polyethylene (PA/PE), which can be used as an anti-oxidizing food packaging material. It can also be used as a precursor in the synthesis of polydimethylsiloxane, which forms an anti-corrosive coating composite with waterborne polyurethane.
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Hazard Classifications
Flam. Liq. 2 - Repr. 2
signalword
Danger
hcodes
Storage Class
3 - Flammable liquids
wgk
WGK 2
flash_point_f
42.8 °F - closed cup
flash_point_c
6 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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Organic/inorganic thin films deposited from diethoxydimethylsilane by plasma enhanced chemical vapor deposition
Roualdes S, et al.
Journal of Non-Crystalline Solids, 248(2-3), 235-246 (1999)
Control of water-channel structure and state of water in sulfonated poly (arylene ether sulfone)/diethoxydimethylsilane in situ hybridized proton conductors and its influence on transport properties for DMFC membranes.
So SY, et al.
Journal of Membrane Science, 346(1), 131-135 (2010)
Preparation of finely macroporous SiOC foams with high mechanical properties and with hierarchical porosity via pyrolysis of a siloxane/epoxide composite.
Strachota A, et al.
Ceramics International, 41(7), 8402-8410 (2015)