EVONIK SILANES

3-Methacryloxypropyltrimethoxysilane – Dynasylan MEMO is a methacrylfunctional silane that can be used as adhesion promoter, surface modifier, co-monomer for polymer synthesis, and crosslinker. Dynasylan MEMO is a clear, colorless liquid. It is soluble in alcohols, and aliphatic or aromatic hydrocarbons.

Methyltriethoxysilane – Dynasylan MTES, an alkyltrialkoxysilane is an important component in sol-gel systems. Dynasylan MTES is a colorless, low-viscosity liquid. Use requires acid- or alkali-catalysed hydrolysis. Dynasylan MTES is regarded as trifunctional since all three alkoxy groups are able to participate in this reaction. Additionally Dynasylan MTES contains a methyl group that adds organic character to the products. Hydrolysis leads to silanol groups which, in a subsequent condensation reaction, form very stable siloxane bonds (-Si-O-Si-). Condensation occurs parallel to hydrolysis once a certain amount of silanol groups have been formed. The absolute and relative rates of hydrolysis and condensation depends on a number of factors. The most important factors include pH, concentration, solvent, temperature, and the catalyst.

3-Mercaptopropyltrimethoxysilane – Dynasylan MTMO is a bifunctional organosilane possessing a reactive organic mercapto and a hydrolyzable inorganic methoxysilyl group. The dual nature of its reactivity allows Dynasylan MTMO to bind chemically to both inorganic materials (e.g. glass, metals, fillers) and organic polymers (e.g. thermosets, thermoplastics, elastomers), thus functioning as an adhesion promoter, crosslinking agent, surface modifier, or reactive reagent. Dynasylan MTMO is a clear, colorless to light yellow liquid with a slightly mercaptan odor. It is soluble in alcohols, ketones, and aliphatic or aromatic hydrocarbons.

Methyltrimethoxysilane – Dynasylan MTMS, an alkyltrialkoxysilane is an important component in sol-gel systems. Dynasylan MTMS is a colorless, low-viscosity liquid. Dynasylan MTMS is regarded as trifunctional since all three alkoxy groups are able to hydrolyze. Additionally Dynasylan MTMS contains a methyl group that adds organic character to the products. Hydrolysis leads to silanol groups which, in a subsequent condensation reaction, form very stable siloxane bonds (-Si-O-Si-). Condensation occurs parallel to hydrolysis once a certain amount of silanol groups have been formed. The absolute and relative rates of hydrolysis and condensation depend on a number of factors. The most important factors include pH, concentration, solvent, temperature, and the catalyst.

Octyltriethoxysilane – Dynasylan OCTEO is a monomeric medium-chain alkylfunctional silane. Dynasylan OCTEO is a clear colourless liquid and soluble in common non-polar organic solvents (e.g. petroleum ether, toluene). However its low volatility and viscosity make Dynasylan OCTEO an easy-to-handle additive. During the hydrolysis reaction between water and Dynasylan OCTEO a certain amount of ethanol (VOC) is released.