(57) includes at least one hydrophilic monomer having a double bond of the ethylenically unsaturated one (a) 1, the double bond of the ethylenically unsaturated two or more [Abstract] The present invention is, cross-linked an organic compound having a group of ethylenically unsaturated, one or more functional groups of the resulting copolymer (b) are copolymerized in the presence of a chain transfer agent having a functional group, and at least one agent is obtained by reacting, on crosslinkable prepolymer novel. Crosslinkable copolymers of the present invention is particularly useful for the production of ophthalmic moldings biomedical moldings, such as contact lenses in particular.本発明は、(a)1つのエチレン性不飽和の二重結合を有する親水性モノマーの少なくとも1種と、2つ以上のエチレン性不飽和の二重結合を含む、架橋剤の少なくとも1種とを、官能基を有する連鎖移動剤の存在下で共重合させ(b)得られたコポリマーの1つ以上の官能基を、エチレン性不飽和の基を有する有機化合物と反応させることによって得られる、新規な架橋結合性プレポリマーに関する。本発明の架橋結合性コポリマーは、生物医学的成形物、たとえば特にコンタクトレンズのような眼用成形物の製造に特に役立つ。
