Carbosiloxane vinylic monomers

摘要

The invention provides a carbosiloxane vinylic monomer which comprises one sole ethylenically unsaturated group, one sole terminal butyl group; and one oligo(carbosiloxane)-containing linkage between the ethylenically unsaturated terminal group and the terminal butyl group. The present invention is also related to a polymer, an actinically-crosslinkable silicone-containing prepolymer, a silicone hydrogel polymeric material, or a silicone hydrogel contact lens, which comprises monomeric units derived from a carbosiloxane vinylic monomer of the invention.

主权项

1. A carbosiloxane vinylic monomer of formula (I)in which: n1 is an integer of 2 to 5; ALK is a C1-C6 alkyl diradical; R1 and R2 independent of each another are a C1-C6 alkyl radical; Q is an ethylenically unsaturated group selected from the group consisting ofin which R3 is hydrogen or a C1-C6 alkyl radical.