Patent ID: 8362171

Claim:
A method of preparing a norbornene block copolymer, comprising: polymerizing a norbornene compound with epoxy groups, comprising a structure represented by formula (I), of: in the presence of RuCl 2 [C 21 H 26 N 2 ][CHC 6 H 5 ]P(C 6 H 11 ) 3 as catalyst for preparing the polymer with side chains of epoxy groups comprising a structure represented by formula (II), of: reacting the polymer with side chains of epoxy groups comprising a structure represented by formula (II) with a norbornene monomer with phthalamide group represented by for preparing a norbornene block copolymer comprising a structure represented by formula (VIII), of: reacting the norbornene block copolymer comprising a structure represented by formula (VIII) with a norbornene monomer with HCl for preparing a norbornene block copolymer comprising a structure represented by formula (IX), of: reacting the norbornene block copolymer comprising a structure represented by formula (IX) with for preparing a norbornene block copolymer represented by formula (X), of: formula (XI), of: or formula (XII), of: wherein, R 1 is H or CH 3 ; n is an integer between 2 to 10000; and m is an integer between 2 to 10000.