3D NETWORK-STRUCTURED SILICON-CONTAINING PREPLOYMER AND METHOD FOR FABRICATING THE SAME

摘要

A 3D network-structured silicon-containing preploymer and a method for fabricating the same are disclosed. The method of the present invention undertakes a hydrolytic condensation/polymerization reaction of TEOS, a reactive silicon-containing polymer and a reactive hydrophilic monomer to form a silicon-containing preploymer featuring a 3D network structure and having superior mechanical strength. The method further undertakes a copolymerization reaction of the silicon-containing preploymer, a hydrophilic monomer and a silicon-containing hydrophobic monomer to fabricate a silicone hydrogel-containing mixture having high oxygen permeability and high hydrophilicity. The silicone hydrogel-containing mixture can be used to fabricate contact lenses that the users wear comfortably.

主权项

1. A 3D network-structured silicon-containing preploymer expressed by Formula (I): whereinand wherein R39 is a C1-C10 alkyl group; R38 is a C1-C8 alkyl group, a carboxylic acid group, or a hydrogen atom; each of R30, R32, R33, R35, R36, and R37 is a C1-C10 alkyl group; each of R31 and R34 is a C1-C8 alkyl group; and a is an integer selected from 1 to 100.