申请人:NIPPON ZEON CO., LTD.
公开号:EP1006134A1
公开(公告)日:2000-06-07
A norbornene polymer comprising a repeating unit derived from a norbornene monomer having a cyclic hydrocarbon structure (I) derived from the norbornene ring which constitutes at least a part of the main chain, another cyclic hydrocarbon structure (II), which shares one carbon-carbon bond with the cyclic hydrocarbon structure (I) and has 4 to 6 carbon atoms, and a monocyclic or polycyclic hydrocarbon structure (III), which shares one carbon-carbon bond with the cyclic hydrocarbon structure (II), in a proportion of 20 to 100 mol% based on the whole repeating unit of the polymer, wherein the number average molecular weight is within a range of 1,000 to 1,000,000, and a peak area (A) on a high magnetic field side and a peak area (B) on a low magnetic field side in methylene peaks derived from the methylene groups in the cyclic hydrocarbon structure (III) in a 13C-NMR spectrum as determined in heavy chloroform (TMS standard) satisfy a relationship of the expression:B/(A + B) ≤ 0.30 and a production process thereof.
一种降冰片烯聚合物,包含由降冰片烯单体衍生的重复单元,降冰片烯单体具有环烃结构 (I),该环烃结构衍生自构成主链至少一部分的降冰片烯环;另一种环烃结构 (II),该环烃结构与环烃结构 (I)共用一个碳-碳键且具有 4 至 6 个碳原子;以及单环或多环烃类结构 (III),该单环或多环烃类结构与环烃结构 (II) 共用一个碳-碳键、在重氯仿(TMS 标准)中测定的 13C-NMR 光谱中,环烃结构(III)中亚甲基所产生的亚甲基峰的高磁场侧峰面积(A)和低磁场侧峰面积(B)满足以下表达式的关系:B/(A + B) ≤ 0.30 及其生产工艺。