Patent ID: 8865925

Claim:
A hydrophilic silicone macromer fabricated according to a method for manufacturing a hydrophilic silicone macromer, comprising the steps of: performing a ring-opening insertion, wherein a cyclic Sloane and a cyclic hydrogen Sloane are subject to a ring-opening reaction, and then are inserted into an asymmetrically end-capped polydialkylsiloxane having a terminal reactive hydrogen to form an asymmetrically end-capped polysiloxane having a silicon-hydrogen (Si—H) bond, in which the terminal reactive hydrogen is derived from a hydroxyl group or an amino group; performing a hydrosilylation between the Si—H bond of the asymmetrically end-capped polysiloxane and a C═C bond of a hydrophilic monomer by using a rhodium-containing catalyst to form an asymmetrically end-capped polysiloxane intermediate having a hydrophilic side chain, wherein the hydrophilic monomer has an amide group or a phosphoryl choline group; and performing an end-capping reaction between the terminal reactive hydrogen of the asymmetrically end-capped polysiloxane intermediate and an electrophilic group of an ethylenically unsaturated compound to form the hydrophilic silicone macromer having only one ethylenically unsaturated group.