Patent ID: 8247498

Claim:
A star polymer comprising the structure represented by (VIII-1), (VIII-2), (IX-1), or (IX-2): where: D represents (CH 2 ) q or a p-phenylene group and q represents an integer of from 0 to 3; R represents a hydrogen or a C1 to C4 alkyl group; n represents an integer of from 1 to 6; n2, n3, n4, and n5 each represents an integer of from 1 to 5; and A is formula (I-1) or (I-2): wherein: B, C 1 , and C 2 each independently represents a polymer; m 1 and m 2 each independently represents an integer of 1 or 2, wherein when m 1 or m 2 is 2, both C 1 or both C 2 represent the same group or different groups; and wavy lined parts indicate a binding part to the structure represented by formula (VIII-1), (VIII-2), (IX-1), or (IX-2).