Patent ID: 8487064

Claim:
A co-polymer compound comprising at least one repeating unit represented by the following Formulae in Group A and at least one repeating unit represented by the following Formula in Group B: Group A: Group B: wherein Ar 1 is a tetravalent C 5 -C 24 arylene group or a tetravalent C 5 -C 24 heterocyclic ring, which is substituted or unsubstituted with at least one substituent selected from the group consisting of C 1 -C 10 alkyl, C 1 -C 10 alkoxy, C 1 -C 10 haloalkyl and C 1 -C 10 haloalkoxy, or two or more of which are fused together to form a condensation ring or covalently bonded to each other via a functional group selected from the group consisting of O, S, C(═O), CH(OH), S(═O) 2 , Si(CH 3 ) 2 , (CH 2 ) p (in which 1≦p≦10), (CF 2 ) q (in which 1≦q≦10), C(CH 3 ) 2 , C(CF 3 ) 2 and C(═O)NH; Ar 1 ′ is a bivalent C 5 -C 24 arylene group or a bivalent C 5 -C 24 heterocyclic ring, which is substituted or unsubstituted with at least one substituent selected from the group consisting of C 1 -C 10 alkyl, C 1 -C 10 alkoxy, C 1 -C 10 haloalkyl and C 1 -C 10 haloalkoxy, or two or more of which are fused together to form a condensation ring or covalently bonded to each other via a functional group selected from the group consisting of O, S, C(═O), CH(OH), S(═O) 2 , Si(CH 3 ) 2 , (CH 2 ) p (in which 1≦p≦10), (CF 2 ) q (in which 1≦q≦10), C(CH 3 ) 2 , C(CF 3 ) 2 and C(═O)NH; Ar 2 is a bivalent C 5 -C 24 arylene group or a bivalent C 5 -C 24 heterocyclic ring, which is substituted or unsubstituted with at least one substituent selected from the group consisting of C 1 -C 10 alkyl, C 1 -C 10 alkoxy, C 1 -C 10 haloalkyl and C 1 -C 10 haloalkoxy, or two or more of which are fused together to form a condensation ring or covalently bonded to each other via a functional group selected from the group consisting of O, S, C(═O), CH(OH), S(═O) 2 , Si(CH 3 ) 2 , (CH 2 ) p (in which 1≦p≦10), (CF 2 ) q (in which 1≦q≦10), C(CH 3 ) 2 , C(CF 3 ) 2 and C(═O)NH, provided that Ar 1 ′ and Ar 2 are different if either Ar 1 ′ or Ar 2 is C 6 H 4 , and wherein the other end of Ar 2 is bonded to a nitrogen atom; Q is O, S, C(═O), CH(OH), S(═O) 2 , Si(CH 3 ) 2 , (CH 2 ) p (in which 1≦p≦10), (CF 2 ) q (in which 1≦q≦10), C(CH 3 ) 2 , C(CF 3 ) 2 , C(═O)NH, C(CH 3 )(CF 3 ), C 1 -C 6 alkyl-substituted phenyl or C 1 -C 6 haloalkyl-substituted phenyl in which Q is linked to opposite both phenyl rings in the position of m-m, m-p, p-m or p-p; Y″ is —O or S; n is an integer from 10 to 400; and l is an integer from 10 to 400.