3- trimethoxysilane

FLUORINECOMPOUNDS,ORGANIC - POLY(FLUOROSILICONES)] (Volll) (3,3,3-Trifluoropropyl)trimethoxysilane... 

The synthesis of triethoxysilane (28) and trimethoxysilane (29) has also been achieved by direct process. In 1980 there were no direct processes for the production of alkoxysilanes. In 1995 Silbond in Weston, Michigan, and Carboline in St. Louis, Missouri, operated processes for the production of tetraethoxysilane in the United States, and OSi/Witco announced start-up of a process to produce triethoxysilane and tetraethoxysilane in TermoH, Italy. 

Near edge x-ray absorption fine stmcture spectroscopy (nexafs) and x-ray photoelectron spectroscopy (xps) have been used to study SAMs of OTS, octadecyltrimethoxysilane (OTMS), CH2(CH2) ySi(OCH2)3, and (17-aminoheptadecyl)-trimethoxysilane (AHTMS), H2N(CH2) ySi(OCH3)3 (149). A number of important observations have been reported. First, the chains in OTS SAMs are practicaUy perpendicular to the substrate surface (tilt angle... 

P-(3,4-Epoxycyclohexyl)-ethyl]trimethoxysilane CH, CH. Si (OCH,), Polyester Epoxide Polycarbonate... 

In [276] the properties of kaolin-filled polyethylenes were investigated. The filler was pre-treated with silanes of two kinds, vinyl triethoxysilane (VTES) (I) and gamma-methacryloxypropyl trimethoxysilane (II). The results are presented in Table. 9. 

The hydrophilic/hydrophobic SIN composition of PDMS with poly(HEMA) and poly(AAC) were proposed as a potential apphcation for high-permeability soft contact lenses. Other sUicone-containing IPNs for contact lenses include polymerization of MMA in the presence of polymerized methacryloxypropyl trimethoxysilane, the cross-linking of a polymeric hydrogel of a copolymer of NVP during the final compression or injection-moulding process. 

Fig. 17 (a) Elastin-based stimulus-responsive gold nanoparticles. Reproduced from [131] by permission of The Royal Society of Chemistry (b) Functionalization of a glass surface with ELP. In the first step, the glass surface is aminosilylated with N-2-(aminoethyl)-3-aminopropyl-trimethoxysilane, then modified with glutaraldehyde. Subsequently, the stimulus-responsive biopolymer is covalently immobilized using reductive amination. Reproduced from [132] by permission of The Royal Society of Chemistry... 

In the context of NHC/metal catalysed cross-coupling reactions, the only example of a Hiyama reaction was reported by Nolan using an in situ protocol by mixing Pd(OAc)j and IPr HCl for the formation of the catalyst. Activated aryl bromides and chlorides, such as 2-chloropyridine, were coupled with phenyl and vinyl-trimethoxysilane in good yields [123] (Scheme 6.39). 

Scheme 6.39 Hiyama coupling between activated aryl bromides/chlorides and phenyl/vinyl-trimethoxysilane...

Copolymer of diallyldimethyl ammonium chloride and vinyl trimethoxysilane WiO ... 

Copolymer of Diallyldimethyl Ammonium Chloride and Vinyl Trimethoxysilane... 

In particular, copolymers of diallyldimethyl ammonium chloride and vinyl trimethoxysilane will have a molecular weight in the range from 100,000 to 1,000,000 Dalton. 

Immobilized Bronsted Acids Supported Fluorosulphuric Acid (FSOsH/SiOA and Trifluoroacetic Acid (CFsCOOH/SiOA- 1.6 mmoles of (3-aminopropyl) trimethoxysilane was dissolved in 100 mL of chloroform, and 1 g of silica gel was added. The slurry was heated under reflux for 24 h. The slurry... 

Allylic trimethoxysilanes are activated by a catalytic combination of CuCl and TBAF.118 The mechanism of this reaction is not entirely clear, but it seems to involve fluoride activation of the silane. These reactions are stereoconvergent for the isomeric 2-butenyl silanes, indicating that reaction occurs through an acyclic TS. 

---