| abstract |
(57) [Abstract] [Purpose] To provide an ophthalmic lens material having excellent transparency and antifouling property, high oxygen permeability and high mechanical strength. [Structure] A copolymer composed of a polysiloxane macromonomer having a polymerizable group bonded to a siloxane main chain through one or more urethane bonds and a copolymerization component containing alkyl (meth) acrylamide as a main component. Polymer, polysiloxane macromonomer / alkyl (meth) The acrylamide (weight ratio) is characterized by being 5/95 to 90/10. |