| 摘要 |
PURPOSE: A material is provided to present high oxygen transability, excellent movability, high permeability for ion and water, and to present comparatively low water absorbing weight, mechanical ductillity, low creep, high photo-transparency, high hydrolysis and heat stability, to wear contact lenses for a long time. CONSTITUTION: An amphiphilic copolymer comprises: more than one segment A for including oxyperm polymers; more than one segment B for including ionoperm polymers(The segment A and the segment B are connected together through anti-hydrolytic ability connection); and more than one unsaturation group capable of copolymerizing. In copolymers including polysiloxane of a formula 1, n is an integral number from 5 to 200, Aik is alkylene less than 20 carbon water, 80 to 100 percent of a radical R1 or R4 is independent alkyl, and 0 to 20 percent of the radical R1 or R4 is independent alkenyl, aryl fluoroalkyl, or cyanoalkyl.
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