3 aminopropyltriethoxysilane reaction with water
Reaction of 3-aminopropyl triethoxysilane with water
Fucheno 3-aminopropyl triethoxysilane is also a silicone compound. It undergoes hydrolysis in contact with water.
The ethoxy group (\ (- OCH_ {2} CH_ {3}\)) in silane is active. When it encounters water, the hydrogen-oxygen bond of water (\ (H-OH\)) breaks, and the hydrogen is connected to the oxygen of the ethoxy group, and the ethanol (\ (C_ {2} H_ {5} OH\)); while the hydroxyl group (\ (-OH\)) is connected to the silicon to form a silanol group (\ (-Si-OH\)).
The hydrolysis process can be done gradually. At first, the one ethoxy group is hydrolyzed to form a silanol group; subsequently, the residual ethoxy group is also gradually hydrolyzed, resulting in the derivative of 3-aminopropyl triethoxysilane into a product containing a polysilanol group.
This hydrolysis product is active and can be further condensed. Between the silanol groups, it dehydrates into a siloxy bond (\ (-Si - O - Si - \) ）。 or molecules with other active groups, react to form complex compounds.
In the chemical industry, this reaction is particularly important. It can be used as a silane coupling agent to enhance the bonding force between materials; to modify the surface of materials to increase their hydrophilicity or reactivity; and to prepare organic-inorganic hybrid materials, taking advantage of both.
