Silanes

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.
(3-Phenylpropyl)dimethylchlorosilane; 3-(Chlorodimethylsilylpropyl)benzene; Chlorodimethyl(3-phenylpropyl)silane

Monoamine 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.
3-Aminopropyltrimethoxysilane, Trimethoxysilylpropylamine, APTES, AMEO, GAPS, A-1100, ?-Aminopropyltrimethoxysilane
Vapor pressure, 67 °: 5 mmSuperior reactivity in vapor phase and non-aqueous surface treatmentsSuperior reactivity in vapor phase and non-aqueous surface treatmentsHydrolysis rate vs SIA0610.0 : 6:1Used to immobilize Cu and Zn Schiff base precatalysts for formation of cyclic carbonatesUsed in microparticle surface modification Standard grade available as SIA0611.0

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.
Isooctyltriethoxysilane; Triethoxysilyl-2,4,4-trimethypentane
Viscosity: 2.1 cStVapor pressure, 112 °C: 10mmArchitectural water-repellentWater scavenger for sealed lubricant systemsTrialkoxy silane

bis[3-(triethoxysilyl)propyl]tetrasulfide; bis(triethoxysilylpropyl)tetrasulfane; TESPT
Sulfur functional dipodal silaneContains distribution of S2 - S10 species; average 3.8Viscosity: 11 cStAdhesion promoter for precious metalsCoupling agent/vulcanizing agent for "green" tiresAdhesion promoter for physical vapor deposition (PVD) copper on parylene

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-Octadecyldimethyl(dimethylamino)silane; (Dimethylamino)dimethyl(octadecyl)silane; N,N,1,1-Tetramethyl-1-octadecylsilanamine; N,N,1,1-Tetramethyl-1-octadecylsilanamine; (N,N-Dimethylamino)dimethyloctadecylsilane; (N,N-Dimethylamino)octadecyldimethylsilane
Contains 5-10% C18 isomersEmployed in bonded HPLC reverse phases

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% C18 isomersEmployed in bonded HPLC reverse phases

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

Olefin 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.
5-Hexenyltrimethoxysilane; Trimethoxysilylhexene
Adhesion promoter for Pt-cure siliconesUsed in microparticle surface modification

(N,N-Diethyl-3-aminopropyl)trimethoxysilane; N-(3-trimethoxysilyl)propyl-N,N-diethylamine, N,N-diethyl-3-(trimethoxysilyl)propylamine
Tertiary amino functional silanesProvides silica-supported catalyst for 1,4-addition reactionsUsed together w/ SIA0591.0 to anchor PdCl2 catalyst to silica for acceleration of the Tsuji-Trost reaction in the allylation of nucleophiles

Fluoroalkyl 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.
Nonafluorohexyltriethoxysilane; (Perfluorobutyl)ethyltriethoxysilane
Critical surface tension, treated surface: 23 mN/mOleophobic, hydrophobic surface treatmentTrialkoxy silane

(3-(N-Ethylamino)isobutyl)trimethoxysilane; 3-(trimethoxysilyl)-N-ethyl-2-methyl-1-propanamine
Secondary amino functional trialkoxy silaneReacts with isocyanate resins (urethanes) to form moisture cureable systemsPrimary amine coupling agent for UV cure and epoxy systemsUsed in microparticle surface modificationAdvanced cyclic analog available: SIE4891.0

Arylsilane 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.
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.
Diphenyldimethoxysilane; Dimethoxydiphenylsilane
Viscosity, 25°C: 8.4 cStAlternative to phenyltrimethoxysilane for the cross-coupling of a phenyl groupIntermediate for high temperature silicone resinsDialkoxy silane

Amine 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-(3-trimethoxysilylpropyl)amine
Secondary amine allows more control of reactivity with isocyanatesEmployed in optical fiber coatingsUsed in combination with silane, (3-Acryloxypropyl)trimethoxysilane, (SIA0200.0), to increase strength and hydrolytic stability of dental compositesDipodal analog of AMEO (SIA0611.0 )

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.
Phenyltrichlorosilane; Trichlorophenylsilane; Trichlorosilylbenzene
Viscosity: 1.08 cStΔHvap: 47.7 kJ/molDipole moment: 2.41 debyeSurface tension: 27.9 mN/mVapor pressure, 75 °C: 10 mmCritical temperature: 438 °CSpecific heat: 1.00 J/g/°CCoefficient of thermal expansion: 1.2 x 10-3Intermediate for high refractive index resinsImmobilizes pentacene films

Tipped PEG Silane (575-750 g/mol)
PEO, Hydroxyl, Triethoxysilane termination utilized for hydrophilic surface modificationDual functional PEGylation reagentHydroxylic silane
Related Products
SIA0078.0: 2-[ACETOXY(POLYETHYLENEOXY)PROPYL] TRIETHOXYSILANE, 95%SIH6185.0: 3-[HYDROXY(POLYETHYLENEOXY)PROPYL] HEPTAMETHYLTRISILOXANE, 90%