The present invention discloses an alkylidenenorbornene polymer comprising as the essential constituent at least one kind of the structural unit represented by the formula
wherein R₁ denotes an alkyl group of 1-4 carbon atoms and R₂ denotes a hydrogen atom or an alkyl group of 1-5 carbon atoms, and a process for producing the same.
According to the present invention, an alkylidenenorbornene polymer is obtained which is excellent in light resistance, transparency, heat resistance and moisture resistance and is useful as an optical polymeric material.
本发明公开了一种亚烷基
降冰片烯聚合物,其基本成分包括至少一种由式表示的结构单元
其中 R₁ 表示 1-4 个碳原子的烷基,R₂ 表示氢原子或 1-5 个碳原子的烷基,以及生产该聚合物的工艺。
根据本发明,可获得一种亚烷基
降冰片烯聚合物,该聚合物具有优异的耐光性、透明性、耐热性和防潮性,可用作光学聚合物材料。