Patent ID: 7645830

Claim:
A polymer comprising: a block chain A which is formed from a random copolymer containing a repeating unit (I) represented by formula (I) wherein R 1 to R 3 each independently represents hydrogen or C 1-10 hydrocarbon and R 1 and R 3 may bond to form a ring; R 4a and R 4b each independently represents hydrogen or methyl; R 5 represents hydrogen, hydrocarbon, acyl, or silyl; and m represents any integer of 1 to 100 and each R 4a may be the same or different from one another and each R 4b may be the same or different from one another when m is 2 or more; and a repeating unit (II) represented by the formula (II) wherein R 6 and R 8 each independently represents hydrogen or C 1-10 hydrocarbon and R 6 and R 8 may bond to form a ring; R 7 represents hydrogen, C 1-10 hydrocarbon, hydroxyl, hydrocarbonoxy, carboxyl, acid anhydride, amino, ester, or an organic group having at least one functional group selected from the group consisting of hydroxyl, carboxyl, epoxy, acid anhydride, and amino; and R 9 represents an organic group having at least one functional group selected from the group consisting of hydroxyl, carboxyl, epoxy, acid anhydride, and amino; and a block chain B having a repeating unit (III) represented by the formula (III) wherein R 10 to R 12 each independently represents hydrogen or C 1-10 hydrocarbon and R 13 represents aryl or heteroaryl; and wherein an arrangement order thereof is B, A, B.