Silanos

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-Octyltrimethoxysilane; Trimethoxysilyloctane
Viscosity: 1.0 cStVapor pressure, 75 °: 0.1 mmTreatment for particles used in non-aqueous liquid dispersionsTrialkoxy silane

Trialkylsilyl 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.
N,N-Dimethylaminotriethylsilane; Triethylsilyldimethylamine
Very reactive triethylsilyl protecting groupDimethylamine by-product producedUsed primarily for the protection of alcoholsCan be used to protect amines and carboxylic acidsSummary of selective deprotection conditions is provided in Table 7 through Table 20 of the Silicon-Based Blocking Agents brochure

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.
Phenethyltrimethoxysilane; Phenylethyltrimethoxysilane; Trimethoxy(2-phenylethyl)silane
Contains α-, β-isomersComponent in optical coating resinsIn combination with TEOS,SIT7110.0, forms hybrid silicalite-1 molecular sieves

Aldehyde 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.
Triethoxysilylundecanal
Treated surface contact angle, water: 70°Long chain coupling agent for DNAProvides greater stability for coupled proteins than shorter alkyl homologsLong chain homolog of triethoxysilylbutyraldehyde (SIT8185.3)

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.
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.
Phenylmethyldichlorosilane; Methylphenyldichlorosilane; Dichloromethylphenylsilane
Viscosity, 20 °C: 1.2 cStΔHvap: 48.1 kJ/molVapor pressure, 82.5 °C: 13 mmMonomer for high temperature siliconesReacts well under the influence of NaOH versus fluoride activation w/ aryl chlorides, bromides, and iodides

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.
9-Trimethoxysilyl-3,3,4,4,5,5,6,6,7,7,8,8-dodecafluorodecene; Dodecafluorodec-9-ene-1-yltrimethoxysilane
Forms self-assembled monolayers; reagent for immobilization of DNAUsed in microparticle surface modificationHalogenated alkyl hydrophobic linkerSimilar to discontinued product, SIH5919.0

Tipped PEG Silane (363.83 g/mol)
PEO, Trichlorosilane termination utilized for hydrophilic surface modificationDual functional PEGylation reagentForms self-assembled monolayers with "hydrophilic tips"Hydrogen bonding hydrophilic silane
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SIM6493.3: 2-[METHOXY(TRIETHYLENEOXY)]- (11-TRIETHOXYSILYL)UNDECANOATE, tech-95

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.
Phenylmethyldimethoxysilane; Methylphenyldimethoxysilane; Dimethoxymethylphenylsilane
Viscosity, 20 °C: 1.65 cStAdditive to coupling agent systems, increasing interface flexibility, UV stabilityDialkoxy silane

Diamine Functional Polymeric 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.
N-(2-Aminoethyl)-3-aminopropyltrimethoxsilane-propyltrimethoxysilane,N-[3-(trimethoxysilyl)propyl]ethylenediamine-(trimethoxysilyl)propane, oligomeric co-hydrolysate
Cohydrolysate of SIA0591.1 and SIP6918.0

(3-Glycidoxypropyl)dimethylethoxysilane; 3-(2,3-epoxypropoxypropyl)dimethylethoxysilane
Epoxy functional monoalkoxy silaneUsed in microparticle surface modificationCoupling agent for UV cure and epoxy systemsEpoxy silane treated surfaces convert to hydrophilic-diols when exposed to moisture

(N-Cyclohexylaminomethyl)triethoxysilane; [(triethoxysilyl)methyl]aminocyclohexane
Secondary amino functional trialkoxy silaneInternal secondary amine coupling agent for UV cure and epoxy systemsUsed in microparticle surface modification

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 isomers70% in toluene

3-Isocyanotopropyltrimethoxysilane; trimethoxysilylpropylisocyanate
Isocyanate functional trialkoxy silaneViscosity: 1.4 cStCoupling agent for urethanes, polyols, and aminesComponent in hybrid organic/inorganic urethanes