Silanes

<p>dimethoxysilylmethylpropyl modified (polyethylenimine)<br>Polyamino hydrophilic dialkoxysilanePrimer for brassViscosity: 100-200 cSt~20% of nitrogens substituted50% in isopropanol<br></p>

<p>Trialkylsilyl Blocking Agent<br>Used as a protecting group for reactive hydrogens in alcohols, amines, thiols, and carboxylic acids. Organosilanes are hydrogen-like, can be introduced in high yield, and can be removed under selective conditions. They are stable over a wide range of reaction conditions and can be removed in the presence of other functional groups, including other protecting groups. The tolerance of silylated alcohols to chemical transformations summary is presented in Table 1 of the Silicon-Based Blocking Agents brochure.<br>Alkyl Silane - Conventional Surface Bonding<br>Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.<br>3,3-Dimethylbutyldimethylchlorosilane; Neohexyldimethylchlorosilane<br>Sterically hindered neohexylchlorosilane protecting groupBlocking agent, forms bonded phases for HPLCSummary of selective deprotection conditions is provided in Table 7 through Table 20 of the Silicon-Based Blocking Agents brochure<br></p>

<p>N-(2-Aminoethyl)-11-aminoundecyltrimethoxysilane<br>Diamino functional trialkoxy silanePrimary amine and an internal secondary amineUsed in microparticle surface modificationCoupling agent with extended spacer-group for remote substrate binding in UV cure and epoxy systemsLong chain analog of SIA0591.1<br></p>

<p>Quaternary Amino Functional Trialkoxy Silane<br>Silane coupling agents have the ability to form a durable bond between organic and inorganic materials to generate desired heterogeneous environments or to incorporate the bulk properties of different phases into a uniform composite structure. The general formula has two classes of functionality. The hydrolyzable group forms stable condensation products with siliceous surfaces and other oxides such as those of aluminum, zirconium, tin, titanium, and nickel. The organofunctional group alters the wetting or adhesion characteristics of the substrate, utilizes the substrate to catalyze chemical transformations at the heterogeneous interface, orders the interfacial region, or modifies its partition characteristics, and significantly effects the covalent bond between organic and inorganic materials.<br>Octadecyldimethyl(3-trimethoxysilylpropyl)ammonium chloride; (trimethoxysilylpropyl)octadecyldimethylammonium chloride; dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium chloride<br>Employed as a glass lubricantOrients liquid crystalsProvides an antistatic surface coatingDispersion/coupling agent for high density magnetic recording media60% in methanolContains 3-5% Cl(CH2)3Si(OMe)3<br></p>

<p>carboxyethylsilanetriol, disodium salt; 3-trihydroxysilylpropanoic acid, disodium salt<br>Carboxylate functional trihydroxy silaneUsed in combination with aminofunctional silanes to form amphoteric silicaspH: 12 - 12.525% in waterUsed in microparticle surface modification<br></p>

<p>Phenyl-Containing Blocking Agent<br>Used as a protecting group for reactive hydrogens in alcohols, amines, thiols, and carboxylic acids. Organosilanes are hydrogen-like, can be introduced in high yield, and can be removed under selective conditions. They are stable over a wide range of reaction conditions and can be removed in the presence of other functional groups, including other protecting groups. The tolerance of silylated alcohols to chemical transformations summary is presented in Table 1 of the Silicon-Based Blocking Agents brochure.<br>Aromatic Silane - Conventional Surface Bonding<br>Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.<br>Diphenylmethyl(dimethylamino)silane; N,N,1-Trimethyl-1,1-diphenylsilanamine<br>More reactive than SID4552.0Liberates dimethylamine upon reactionSummary of selective deprotection conditions is provided in Table 7 through Table 20 of the Silicon-Based Blocking Agents brochure<br></p>

<p>Alkyl Silane - Conventional Surface Bonding<br>Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.<br>Dimethyldiethoxysilane; Diethoxydimethylsilane<br>Viscosity: 0.53 cStVapor pressure, 25 °C: 15 mmΔHcomb: -4,684 kJ/molΔHform: 837 kJ/molΔHvap: 41.0 kJ/molDipole moment: 1.39 debyeVapor pressure, 25 °C: 15 mmCoefficient of thermal expansion: 1.3 x 10-3Hydrophobic surface treatment and release agentDialkoxy silane<br></p>

<p>Hexamethyldisilane; HMD; 2,2,3,3-Tetramethyl-2,3-disilabutane<br>Viscosity: 1.0 cStΔHcomb: 5,909 kJ/molΔHform: -494 kJ/molΔHvap: 39.8 kJ/molVapor pressure, 20 °C: 22.9 mmEa decomposition at 545 K: 337 kJ/molRotational barrier, Si–Si: 4.40 kJ/molSecondary NMR reference: δ = 0.045Source for trimethylsilyl anionReplaces aromatic nitriles with TMS groups in presence of [RhCl(cod)]2Precursor for CVD of silicon carbideBrings about the homocoupling of arenesulfonyl chlorides in the presence of Pd2(dba)3Used as a solvent for the direct borylation of fluoroaromaticsReacts with alkynes to form silolesUndergoes the silylation of acid chlorides to give acylsilanes<br></p>

<p>Fluorinated Alkyl Silane - Conventional Surface Bonding<br>Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.<br>Perfluorooctylethyl triethoxysilane; (1H,1H,2H,2H-Perfluorodecyl)triethoxysilane; Triethoxy(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl)silane<br>Packaged over copper powderHydrolysis in combination with polydimethoxysiloxane gives hard hydrophobic coatingsTrialkoxy silane<br></p>

<p>N-(2-Aminoethyl)-3-aminopropyltrimethoxysilane, N-[3-(trimethoxysilyl)prpyl]ethylenediamine, DAMO<br>Diamino functional trialkoxy silaneViscosity: 6.5 cStγc of treated surfaces: 36.5 mN/mSpecific wetting surface: 358 m2/gCoefficient of thermal expansion: 0.8x10-3Coupling agent for polyamides, polycarbonates (e.g. in CDs), polyesters and copper/brass adhesionFilm-forming coupling agent/primer, berglass size componentFor cyclic version: SID3543.0 For pre-hydrolyzed version: SIA0590.0 Used in the immobilization of copper (II) catalyst on silicaUsed together w/ SID3396.0 to anchor PdCl2 catalyst to silica for acceleration of the Tsuji-Trost reaction in the allylation of nucleophilesDetermined by TGA a 25% weight loss of dried hydrolysates at 390 °C&Tab;For technical grade see SIA0591.0 Shorter chain analog of SIA0595.0Available as a cohydrolysate with n-propyltrimethoxysilane (SIP6918.0) ; see SIA0591.3<br></p>

<p>Alkyl Silane - Conventional Surface Bonding<br>Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.<br>Methyltrichlorosilane; Trichloromethylsilane; Trichlorosilylmethane<br>Viscosity: 0.46 cStΔHvap: 31.0 kJ/molSurface tension: 20.3 mN/mIonization potential: 11.36 eVSpecific heat: 0.92 J/g/°Vapor pressure, 13.5 °C: 100 mmCritical temperature: 243 °CCritical pressure: 39 atmCoefficient of thermal expansion: 1.3 x 10-3Fundamental builing-block for silicone resinsForms silicon carbide by pyrolysisIn a synergistic fashion with boron trifluoride etherate catalyzes the crossed imino aldehyde pinacol couplingIn combination with H2 forms SiC by CVDStandard grade available, SIM6520.0<br></p>

<p>Alkyl Silane - Conventional Surface Bonding<br>Aliphatic, fluorinated aliphatic or substituted aromatic hydrocarbon substituents are the hydrophobic entities which enable silanes to induce surface hydrophobicity. The organic substitution of the silane must be non-polar. The hydrophobic effect of the organic substitution can be related to the free energy of transfer of hydrocarbon molecules from an aqueous phase to a homogeneous hydrocarbon phase. A successful hydrophobic coating must eliminate or mitigate hydrogen bonding and shield polar surfaces from interaction with water by creating a non-polar interphase. Although silane and silicone derived coatings are in general the most hydrophobic, they maintain a high degree of permeability to water vapor. This allows coatings to breathe and reduce deterioration at the coating interface associated with entrapped water. Since ions are not transported through non-polar silane and silicone coatings, they offer protection to composite structures ranging from pigmented coatings to rebar reinforced concrete. A selection guide for hydrophobic silanes can be found on pages 22-31 of the Hydrophobicity, Hydrophilicity and Silane Surface Modification brochure.<br>Methyltrimethoxysilane; Trimethoxymethylsilane; Trimethoxysilylmethane<br>Viscosity: 0.50 cStΔHcomb: 4,780 kJ/molDipole moment: 1.60 debyeIntermediate for coating resinsAlkoxy crosslinker for condensation cure siliconesTrialkoxy silaneHigher purity grade available, SIM6560.1<br></p>

<p>Olefin Functional Trialkoxy Silane<br>Silane coupling agents have the ability to form a durable bond between organic and inorganic materials to generate desired heterogeneous environments or to incorporate the bulk properties of different phases into a uniform composite structure. The general formula has two classes of functionality. The hydrolyzable group forms stable condensation products with siliceous surfaces and other oxides such as those of aluminum, zirconium, tin, titanium, and nickel. The organofunctional group alters the wetting or adhesion characteristics of the substrate, utilizes the substrate to catalyze chemical transformations at the heterogeneous interface, orders the interfacial region, or modifies its partition characteristics, and significantly effects the covalent bond between organic and inorganic materials.<br>Allyltriethoxysilane; 3-(Triethoxysilyl)-1-propene; Triethoxyallylsilane; Propenyltriethoxysilane<br>Dipole moment: 1.79 debyeVapor pressure, 100 °: 50 mmExtensive review on the use in silicon-based cross-coupling reactionsComonomer for polyolefin polymerizationUsed in microparticle surface modificationAdhesion promoter for vinyl-addition silicones<br></p>

<p>Monoamine Functional Trialkoxy Silane<br>Silane coupling agents have the ability to form a durable bond between organic and inorganic materials to generate desired heterogeneous environments or to incorporate the bulk properties of different phases into a uniform composite structure. The general formula has two classes of functionality. The hydrolyzable group forms stable condensation products with siliceous surfaces and other oxides such as those of aluminum, zirconium, tin, titanium, and nickel. The organofunctional group alters the wetting or adhesion characteristics of the substrate, utilizes the substrate to catalyze chemical transformations at the heterogeneous interface, orders the interfacial region, or modifies its partition characteristics, and significantly effects the covalent bond between organic and inorganic materials.<br>3-Aminopropyltriethoxysilane, ?-Aminopropyltriethoxysilane, Triethoxysilylpropylamine, APTES, AMEO, GAPS, A-1100<br>Viscosity: 1.6 cSt?Hvap: 11.8 kcal/molTreated surface contact angle, water: 59°?c of treated surfaces: 37.5 mN/mSpecific wetting surface: 353 m2/gVapor pressure, 100 °C: 10 mmWidely used coupling agent for phenolic, epoxy, polyamide, and polycarbonate resinsUsed to bind Cu(salicylaldimine) to silicaEffects immobilization of enzymesUsed in microparticle surface modificationBase silane in SIVATE A610 and SIVATE E610Low fluorescence grade for high throughput screening available as SIA0610.1<br></p>