CYCLIC OLEFIN POLYMER, OPTICAL MATERIAL, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY
申请人:WATANABE Saisuke
公开号:US20080299329A1
公开(公告)日:2008-12-04
A cyclic olefin polymer is provided and includes a repeating unit represented by formula (1A) and a repeating unit represented by the formula (1B):
R
1
and R
3
each independently represents a substituent, L
1
and L
2
each independently represents a single bond or a divalent linking group, m and p each independently represents an integer of 0 or 1, and n and q each independently represents an integer of 1 to 4; and A represents COOR
2
or OCOR
2
, and R
2
represents a linear alkyl group having a carbon number of 1 to 10. The cyclic olefin polymer has a copolymerization ratio of x and y satisfying 0.03≦y/(x+y)≦0.50, a number average molecular weight of from 70,000 to 300,000, and a weight average molecular weight of from 200,000 to 700,000.
提供了一种环状烯烃聚合物,包括由公式(1A)表示的重复单元和由公式(1B)表示的重复单元:R1和R3各自独立地表示取代基,L1和L2各自独立地表示单键或二价连接基,m和p各自独立地表示0或1的整数,n和q各自独立地表示1到4的整数;A表示COOR2或OCOR2,R2表示具有1到10个碳原子的线性烷基。该环状烯烃聚合物具有x和y的共聚比满足0.03≦y/(x+y)≦0.50,数量平均分子量为70,000至300,000,重量平均分子量为200,000至700,000。