Diphenyldimethoxysilane - CAS 6843-66-9
Main Product
Product Name:
Catalog Number:
DIMETHOXYDIPHENYLSILANE; DIPHENYLDIMETHOXYSILANE; ay43-047; CD6010; dimethoxydiphenyl-silan; Diphenyldimethoxylsilane; diphenyldimethoxylsilicane; kbm202
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Chemical Structure
CAS 6843-66-9 Diphenyldimethoxysilane

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Reference Reading

1.Mechanism and nanosize products of the sol-gel reaction using diphenylsilanediol and 3-methacryloxypropyltrimethoxysilane as precursors.
Kim SY1, Augustine S, Eo YJ, Bae BS, Woo SI, Kang JK. J Phys Chem B. 2005 May 19;109(19):9397-403.
We use a first-principles calculation and small-angle neutron scattering (SANS) to investigate the mechanism and the nanosize products of the sol-gel reaction with diphenylsilanediol (DPD) and 3-methacryloxypropyltrimethoxysilane (MEMO) precursors in synthesizing a hybrid waveguide material. It is predicted that switching between a DPD hydroxyl and a MEMO methoxy with a reaction rate of 6.8 x 10(-6) s(-1) at 300 K is the fastest process for the first reaction step, thus generating diphenylmethoxysilanol (DPM) and 3-methacryloxypropyldimethoxysilanol (MEDO) as products. However, we determine that this reaction pathway could be modified by the presence of the H2O released from a catalyst such as Ba(OH)2.H2O. Next, switching between the DPM hydroxyl and the MEDO methoxy is followed to generate diphenyldimethoxysilane (DPDM) and 3-methacryloxypropylmethoxysilanediol (MEMDO). However, condensation between a MEMDO hydroxyl and a DPDM methoxy is found to be most favorable for the third reaction step, which generates the DPDM-MEMDO dimer and CH3OH molecule as products.
2.The development of novel organically modified sol-gel media for use with ATR/FTIR sensing.
Flavin K1, Mullowney J, Murphy B, Owens E, Kirwan P, Murphy K, Hughes H, McLoughlin P. Analyst. 2007 Mar;132(3):224-9. Epub 2006 Dec 19.
The ability to prepare and develop novel pre-concentration media by the sol-gel process, and their integration with mid-infrared transparent waveguides has been demonstrated. This research approach resulted in a mid-infrared sensing methodology in which the properties (porosity, functionality, polarity, etc.) of the recognition layer could be tailored by variation of the sol-gel precursors and processing conditions. Cross-linker type and concentration notably influenced p-xylene absorption and diffusion rate. Unreacted silanol groups appeared to be the dominant factor in the hydrophobicity of sol-gel layers. Variation of sol-gel precursors and thermal treatment altered both film cross-link density and polarity, as demonstrated by variation in the rate of analyte diffusion and equilibrium analyte concentration. The use of a novel 1 : 1 PTMOS : DPDMS material as pre-concentration medium in this analytical sensing approach was validated through the determination of p-nitrochlorobenzene in an aqueous environment.