METHOD FOR PREPARING CYCLIC OLEFIN POLYMER HAVING A POLAR FUNCTIONAL GROUP, CYCLIC OLEFIN POLYMER PREPARED BY THE METHOD AND OPTICAL ANISOTROPIC FILM COMPRISING THE SAME

摘要

A method for preparing a cyclic olefin polymer having a polar functional group is provided to prevent inactivation of a catalyst caused by polar groups, water or oxygen, and to obtain a polar group-containing cyclic olefin polymer with a high molecular weight and high yield. A method for preparing a cyclic olefin polymer having a polar functional group comprises a step of carrying out addition polymerization of a monomer solution containing polar group-containing olefinic monomers, in the presence of a catalyst mixture comprising a Group 10 metal-containing precatalyst represented by the following formula 1 and a cocatalyst comprising a phosphonium-containing salt compound represented by formula 2 of [(R3)-P(R4)a(R4')b[Z(R5)d]c][Ani], as well as a solvent. In formula 1, X is a heteroatom selected from S, O and N; R1 is -CH=CHR20, -OR20, -SR20, -N(R20)2, -N=NR20, -P(R20)2, -C(O)R20, -C(R20)=NR20, -C(O)OR20, -OC(O)OR20,-OC(O)R20, -C(R20)=CHC(O)R20, -R21C(O)R20, -R21C(O)OR20, or -R21OC(O)R20; R20 is H, halogen or a substituted or non-substituted alkyl, haloalkyl, cycloalkyl, alkenyl, haloalkenyl or aralkyl; R21 is a C1-C20 hydrocarbylene; R2 is a substituted or non-substituted alkyl, alkenyl, cycloalkyl, aryl, aralkyl or alkynyl; M is a Group 10 metal; and p is 0-2. In formula 2, each of a, b and c is an integer of 0-3, wherein a+b+c=3; Z is O, S, Si or N; d is 1 when Z is O or S, d is 2 when Z is N, and d is 3 when Z is Si; R3 is H, alkyl or aryl; each of R4, R4' and R5 is H, substituted or non-substituted alkyl, alkenyl, alkoxy, cycloalkyl, aryl, aralkyl, alkynyl, trialkylsilyl, trialkoxysilyl, tricycloalkylsilyl, triarylsilyl, triaryloxysilyl, trialkylsiloxy, tricycloalkylsiloxy, or triarylsiloxy; and [Ani] is an anion forming a weak coordination bond with M.