Silanes methyltrimethoxysilane

The first step for the synthesis of a melt spinnable polysilane is the alkoxylation and distillation of the residue (Figure 1). 1,2-dimethyltetramethoxydisilane and 1,1,2-trimethyltrimethoxydisilane are mixed in a special ratio and a poly silane will be obtained by a catalytic redistribution reaction. Catalysts for this reaction are alkali alkoxides like sodium methoxylate. Phenylmethoxydisilanes [22] or phenylchloride are used as additives. A mixture of methyltrimethoxysilane and dimethyldimethoxy-silane distils off as a byproduct of the redistribution reaction. Figure 2 shows the mechanism of the catalytic redistribution. 

Silanes, y-aminopropyltriethoxysilane and methyltrimethoxysilane were obtained from Union Carbide (A1100 and A163 silanes, respectively), y-chloro-propyltrimethoxysilane was obtained from Petrarch Systems, Inc. 

The same sequence of desorption experiments was performed on silane-treated glass surfaces. Desorption of organic contaminants from glass fiber treated with methyltrimethoxysilane is shown by the dashed curve in Fig. 4A. The desorption envelope obtained from silane-treated glass with no probe on the column is... 

The subtraction envelope obtained by ramping the t-butylamine from the silane-treated surface (Fig 4A, solid curve) has features above 120°C that are characteristic of methyltrimethoxysilane, and are probably dependent on all the details of glass surface chemistry, silane concentration in the size, and mode of deposition. These features are not thermally stable, as shown by the desorption envelope from a second ramp (Fig. 4B). The chemisorptive capacity of silanized glass for the Lewis acid is also severely mitigated by the first ramp (Fig. 4C). 

As the a-STPs are much more reactive than conventional y-silanes, a reactive diluent (vinyl- or methyltrimethoxysilane) can be added to adjust the viscosity of the prepolymer without any decrease in the curing speed [6, 8]. During foam curing, the reactive diluent is incorporated into the emerging polymer. Therefore the content of this compound has only a little effect on the hardness of the cured polymer. 

Sasou M, Sugiyama S, Yoshino T, Ohtani T. Molecular flat mica surface silanized with methyltrimethoxysilane for fixing and straightening DNA. Langmuir 2(X)3 19 9845-9. 

Recently, Reetz and others have published a number of studies showing that adding organically modified silanes (precursors), such as methyltrimethoxysilane or poly (dimethylsiloxane), to tetraethoxysilane (TEOS) during hydrolysis can produce a protein-doped organicinorganic hybrid material that is hydrophobic [1-7]. Systems already tested... 

Unlike conventional silicone resins, the monomethylpolysiloxane silica hybrid resins exhibit excellent resistance to abrasion and chemical attack. It is fairly well established that silane coupling agents form metal-oxygen-silicon bonds with metal surfaces (11). The silanol groups on the freshly hydrolyzed methyltrimethoxysilane are essentially the same as the silanols on neutral silane coupling agents. Therefore the surface of the silica sol particles can react with the monomethylsilane triol (IIA). 

Trimethoxy (2-methylpropyl) silane. See Isobutyltrimethoxysilane Trimethoxymethylsilane. See Methyltrimethoxysilane Trimethoxy [2-(7-oxabicyclo [4.1.0] hept-3-yl) ethyl] silane. See 2 (3,4-Epoxycyclohexyl)ethyltrimethoxysilane Trimethoxyphenylsilane. See Phenyltrimethoxysilane Trimethoxypropylsilane. See n-Propyltrimethoxysilane (Trimethoxysilyl) benzene. See Phenyltrimethoxysilane (Trimethoxysilyl) ethene. See Vinyltrimethoxysilane 3-(2-Trimethoxysilylethyl) cyclohexene oxide. See 2-(3,4-Epoxycyclohexyl) ethyltrimethoxysilane... 

Dow Corning Z-6011 Siiane. See Aminopropyltriethoxysilane Dow Corning Z-6020 Silane. See N-2-Aminoethyl-3-aminopropyl trimethoxysilane Dow Corning Z-6030 Siiane. See 3-Methacryloxypropyltrimethoxysilane Dow Corning Z-6040 Siiane. See 3-Glycidoxypropyltrimethoxysilane Dow Corning Z-6070 Siiane. See Methyltrimethoxysilane Dow Corning Z-6075. See Vinyltriacetoxy silane... 

Methyltrihydroxysilane triacetate. See Methyltriacetoxysilane 1-Methyl-2,4,6-triitrobenzene. See 2,4,6-Trinitrotoluene Methyltrimethoxysilane CAS 1185-55-3 EINECS/ELINCS 214-685-0 Synonyms Silane, trimethoxymethyl- Trimethoxymethylsilane Empirical C4Hi203Si Formula CH3Si(OCH3)3 Properties Colorless liq. m.w. 136.25 dens. 

Silane, triethoxyvinyl-. See Vinyltriethoxysilane Silane, trihexyl-. See Trihexylsilane Silane, triisopropyl-. See Trilsopropylsilane Silane, trimethoxymethyl-. See Methyltrimethoxysilane Silane trimethoxy (2-methylpropyl). See Isobutyltrimethoxysilane Silane, trimethoxyoctadecyl-. See n-Octadecyltrimethoxysilane Silane, trimethoxy (3-(oxiranylmethoxy) propyl)-. See 3-Glycidoxypropyltrimethoxysilane Silane, trimethoxy-2-propenyl. See Allyltrimethoxysilane Silane, trimethoxypropyl-. See n-Propyltrimethoxysilane Silane, trimethoxyvinyl-. See Vinyltrimethoxysilane Silane, trimethyl-. See Trimethylsilane Silane, trimethylchloro-. See Trimethylchlorosilane Silane, trimethylethoxy-. See Trimethylethoxysilane Silane, trimethyl (octadecyloxy)-. See Stearoxytrimethylsilane... 

Siiquest A-1630. See Methyltrimethoxysilane Silquesi A-2120. See N-(2-Aminoethyl)-3-aminopropyl methyidimethoxy silane Siiquest A-2171. See Vinylmethyidimethoxysilane Silquesi TEOS Pure Silane. See Ethyl silicate Silquesi Y-11343. See Tris-r3-(trimethoxysilyl) propyl] isocyanurate Silquesi Y-11542. See y-Ureidopropyltrimethoxysilane Silquesi Y-11597. See Tris-[3-(trimethoxysilyl) propyl] isocyanurate Silquesi Y-15078. Seey-Glycidyloxypropyldimethoxymethylsilane Silrex. See Silicone emulsion Silsoft 034. See Caprylyl methicone Siltech CE-2000. See Trioctyidodecyl citrate Siltech E-2110, Siltech E-2140-35-FG,... 

Isopropyidimethylchlorosilane 3-Mercaptopropylmethyldimethoxysilane Mercaptopropyltrimethoxysilane 3-Methacryloxypropyltris (trimethylsiloxy) silane N-Methylaminopropyltrimethoxysilane Methylcyclohexyldichlorosilane Methylcyclohexyldimethoxysilane Methyidichlorosilane Methylphenyidichlorosilane Methyltriacetoxysilane Methyltrichlorosilane Methyltriethoxysilane Methyltrimethoxysilane N-Methyl-N-trimethylsilyltrifluoroacetamide Methyltris (methylethylketoxime) silane Octadecyidimethyl [3-(trimethoxysilyl) propyl] ammonium chloride ... 

In an attempt to infer the nature of silane coatings on the glass surface, our study characterized polymerized silane films, deposited from silane solutions of different concentrations. Since methyltrimethoxysilane (MS) has the simplest chemical composition among the silane compounds used as coupling agents, polymerized silane films of the MS were chosen as a model system. The nature of other silane coatings on the glass surface is inferred on the basis of this model system. 

Monomeric silane derivatives (Wheeler, 2(X)5) used in conservation are trior tetrafunctional derivatives, such as tetraethoxysUane (synonyms ethyl silicate, tetraethyl silicate, TEOS). The polymerization, initiated by traces of water, is by hydrolysis and condensation (Figure 13.2). Not all the silanol Si-OH groups will condense to form cross-links (Amoroso and Fassina, 1983). The polymer formed from a tetrafunctional monomer will be similar to silica gel. Care must be taken to ensure anhydrous storage of silanes to prevent premature polymerization. Trifnnctional monomers such as methyltrimethoxysilane react in a similar fashion bnt retain the Si-C bond. The polymer formed from this monomer is resistant to solvents and photo-oxidation. It is tough but not flexible (Moncrieff, 1976). The silanol groups will react with -OH groups on a surface to create chemical links. 

In a separate set of experiments. Figure 3 illustrates the effect the methyltrimethoxysilane/ water ratio has on the particle size. The largest particles were formed at high silane/water rations at a given base concentration. However, a maximum was seen in the base range examined. 

The effect of other organosilanes on deteriorated limestone was investigated. Particular attention was paid to the depth of penetration, effects on color, and the degree of consohdation. A solution of acryhc silane in methyltrimethoxysilane was found to be the most suitable consolidants for use on limestone (Bradley, 1987). It was also shown that organosilanes do not encapsulate salt in stone and that soluble salts could be removed by a poulticing technique following consolidation. 

Incorporation of silane moieties having only two or three hydrolyzable groups (e.g., methyltrimethoxysilane), which have only three or fewer cross-linking degrees of freedom and thus form a more flexible silox-ane skeleton. 

Figure 10 Formation of linear and crosslinked polydimethylsiloxane networks. Room temperature vulcanization (RTV) is performed by reacting methoxysilyl-terminated polymer 75 and methyltrimethoxysilane 76. Hydrolysis produces transient silanols 77 and 78 whose dehydration yields silicone precursor 79. Two-part systems are based on the platinum-catalyzed addition reaction between vinyl-terminated polysiloxane 80 and polydimethylsiloxane carrying either only terminal 81 or multiple silane (Si-H) pendent groups. Silicone main chains of the resulting polymer 82 are linked through silicon-...

Silanes like glycidoxypropyltrimethoxysilane, tetraethoxysilane, and methyltrimethoxysilane (see Figure 10.26), have been used in formulations to increase the adhesion of PEDOTiPSS films to glass and polymeric substrates. During formulation Si-O-C-bonds of the agent hydrolyze in water... 

The pyrrole-based silane (SiPy) molecule is schematically represented in Fig. 5.1. A SiPy solution was prepared at 4%v/v in methanol/water (95 5) with pH adjusted to 4 by adding acetic acid (10%). Methyltrimethoxysilane (Si) solution was prepared similarly. 

Silane, oxybis (trimethyl-. See Hexamethyidisiloxane Silane, triethoxyoctyl-. See Octyltriethoxysilane Silane, trimethoxymethyl-. See Methyltrimethoxysilane Silane, trimethylchloro-. See Trimethylchlorosilane Silane, trimethyl (octadecyloxy)-. See Stearoxytrimethylsilane Silica... 

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