Silanes

3-Thiocyanatopropyltriethoxysilane; 3-(triethoxysilyl)propylthiocyanate Thiocyanate functional trialkoxy silaneSulfur functional coupling agentMasked isothiocyanate functionalityComplexing agent for Ag, Au, Pd, PtPotential adhesion promoter for gold

11-Mercaptoundecyltrimethoxysilane Sulfur functional trialkoxy silaneStabilizes ionic liquid drop micro-reactorsLong chain analog of SIM6476.0

3-(N,N-Dimethylaminopropyl)aminopropylmethyldimethoxysilane; N3-[3-(dimethoxymethylsilyl)propyl]-N1,N1-dimethyl-1,3-propanediamine; Tertiary amino functional trialkoxy silaneCoupling agent combines secondary and tertiary amine functionComonomer for silicone textile finishes

Tipped PEG Silane (500-855 g/mol) PEO, Tris(dimethylamino)silane termination utilized for hydrophilic surface modificationPEGylation reagentFor MOCVD of hydrophilic films

Alkyl Silane - Conventional Surface Bonding 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. n-Octyldimethylchlorosilane; Dimethyloctylchlorosilane; Chlorodimethyloctylsilane

2-Hydroxy-4-(3-triethoxysilylpropoxy)diphenylketone; 4-(3-triethoxysilylpropoxy)-2-hydroxybenzophenone [2-hydroxy-4-[3-(triethoxysilyl)propoxy]phenyl]phenylmethanone UV active trialkoxy silaneAmber liquidViscosity, 25 °C: 125-150 cStUV max: 230, 248, 296 (s), 336Strong UV blocking agent for optically clear coatings,Absorbs from 210-420 nmUsed in Bird-deterrent Glass Coatings

Bridging Silicon-Based Blocking Agent 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. Alkyl Silane - Conventional Surface Bonding 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. Dimethyldichlorosilane; Dichlorodimethylsilane; DMS AIR TRANSPORT FORBIDDENRedistilledViscosity: 0.47 cStVapor pressure, 17 °C: 100 mmSpecific heat: 0.92 J/g/°ΔHcomb: -2,055 kJ/molΔHvap: 33.5 kJ/molSurface tension: 20.1 mN/mCoefficient of thermal expansion: 1.3 x 10-3Critical temperature: 247.2 °CCritical pressure: 34.4 atmFundamental monomer for siliconesEmployed in the tethering of two olefins for the cross metathesis-coupling step in the synthesis of Attenol AAids in the intramolecular Pinacol reactionReacts with alcohols, diols, and hydroxy carboxylic acidsEmployed as a protecting group/template in C-glycoside synthesisAvailable in a lower purity as SID4120.0Summary of selective deprotection conditions is provided in Table 7 through Table 20 of the Silicon-Based Blocking Agents brochure

Halogen Functional Trialkoxy Silane 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. Chloromethyltriethoxysilane; triethoxy(chloromethyl)silane; (chloromethyl)triethoxysilane; (triethoxysilyl)methylchloride Grignard reacts with chlorosilanes or intermolecularly to form carbosilanesUsed in microparticle surface modification

DMS-A32 - Aminopropyl terminated polydimethylsiloxane cSt 1,800-2,200

Alkyl Silane - Conventional Surface Bonding 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. n-Octyldimethyl(dimethylamino)silane; Dimethylaminooctyldimethylsilane

Monoamino Functional Dialkoxy Silane 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. 3-Aminopropylmethyldiethoxysilane, 3-(diethoxymethylsilyl)propylamine Primary amine coupling agent for UV cure and epoxy systemsUsed in microparticle surface modificationUsed in foundry resins: phenolic novolaks and resolsVapor phase deposition >150 °C on silica yields high density amine functionality

DBP-732 - Dimethylsiloxane (60% propylene oxide - 40% ethylene oxide) block copolymers, 1,800 cSt

Specialty Silicon-Based Blocking Agent 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. (Heptadecafluoro-1,1,2-2-tetrahydradecyl)dimethylchlorosilane; Perfluorodecyl-1H,1H,2H,2H-dimethylchlorosilane; (1H,1H,2H,2H-Perfluorodecyl)dimethylchlorosilane Packaged over copper powderPotential blocking agent for fluorous phase synthesisSummary of selective deprotection conditions is provided in Table 7 through Table 20 of the Silicon-Based Blocking Agents brochureTreated onto silica to prepare a fluorinated surface for the embedding of a catalyst for Bonded Fluorous Phase Catalysis (BFPC) used in dehydrogenative silylation of alcoholsForms self-assembled monolayer resists that align nanowire arrays

N-(triethoxysilylpropyl)-O-polyethylene oxide urethane; O-polyethylene oxide-N-(triethoxysilylpropyl)-urethane Hydroxy functional trialkoxy silaneContains some bis(urethane) analogViscosity: 75-125 cStHydrophilic surface modifierForms PEGylated glass surfaces suitable for capillary electrophoresis

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

Alkyl Silane - Dipodal Surface Bonding 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. Non Functional Alkoxy Silane 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. Dipodal Silane Dipodal silanes are a series of adhesion promoters that have intrinsic hydrolytic stabilities up to ~10,000 times greater than conventional silanes and are used in applications such as plastic optics, multilayer printed circuit boards and as adhesive primers for ferrous and nonferrous metals. They have the ability to form up to six bonds to a substrate compared to conventional silanes with the ability to form only three bonds to a substrate. Many conventional coupling agents are frequently used in combination with 10-40% of a non-functional dipodal silane, where the conventional coupling agent provides the appropriate functionality for the application, and the non-functional dipodal silane provides increased durability. Also known as bis-silanes additives enhance hydrolytic stability, which impacts on increased product shelf life, ensures better substrate bonding and also leads to improved mechanical properties in coatings as well as composite applications. Bis(trimethoxysilylethyl)benzene Mixed isomers Forms high refractive index coatingsForms resins that absorb organics from aqueous media

Alkenylsilane Cross-Coupling Agent The cross-coupling reaction is a highly useful methodology for the formation of carbon-carbon bonds. It involves two reagents, with one typically being a suitable organometallic reagent - the nucleophile - and the other a suitable organic substrate, normally an unsaturated halide, tosylate or similar - the electrophile. 1,3-Divinyltetramethyldisiloxane; Diethenyltetramethyldisiloxane; Tetramethyldivinyldisiloxane; Divinyltetramethyldisiloxane Silicone end-capperPotential vinyl nucleophile in cross-coupling reactionsModifier for vinyl addition silicone formulationsPotential vinyl donor in cross-coupling reactionsExtensive review of silicon based cross-coupling agents: Denmark, S. E. et al. "Organic Reactions, Volume 75" Denmark, S. E. ed., John Wiley and Sons, 233, 2011

Aromatic Silane - Conventional Surface Bonding 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. Phenethyltrichlorosilane; 2-(Trichlorosilylethyl) benzene; Trichloro(2-phenylethyl)silane Contains α-, β-isomersTreated surface contact angle, water: 88°

Silane Cross-Coupling Agent The cross-coupling reaction is a highly useful methodology for the formation of carbon-carbon bonds. It involves two reagents, with one typically being a suitable organometallic reagent - the nucleophile - and the other a suitable organic substrate, normally an unsaturated halide, tosylate or similar - the electrophile. Cyclotrimethylenedichlorosilane; 1,1-Dichlorosilacyclobutane Reaction with LiN(iPr)2 and CH2X2 provides 1,1-dimethyl-2-halosilacyclopentanesArylchlorosilyl derivatives used in cross-coupling to biarylsVinylchlorosilyl derivatives used in cross-coupling to 1,3-butadienesStarting material for spirocyclic organosilanesPrecursor for aryl-substituted silacyclobutanes useful for aryl cross-coupling reactionsExtensive review of silicon based cross-coupling agents: Denmark, S. E. et al. "Organic Reactions, Volume 75" Denmark, S. E. ed., John Wiley and Sons, 233, 2011

Alkyl Silane - Conventional Surface Bonding 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. n-Octadecyldimethylchlorosilane; Dimethyl-n-octadecylchlorosilane; Chlorodimethyloctadecylsilane; Chlorodimethylsilyl-n-octadecane Contains 5-10% C18 isomersEmployed in bonded HPLC reverse phases

PEGylated Silicone, Trisiloxane (600-750 g/mol) PEO, PEG, Ester terminated trisiloxane surfactantPEGylation reagentViscosity: 30 cSt

Tipped PEG Silane (326.46 g/mol) PEO, Trimethoxysilane termination utilized for hydrophilic surface modificationPEGylation reagentHydrogen bonding hydrophilic silaneForms polymeric proton-conducting electrolytes

Hexamethylcyclotrisiloxane (HMCTS, D3) Undergoes ring-opening anionic polymerizationReacts with three equivalents of an organolithium reagent to give derivatized dimethylsilanols