| 主权项 |
1. The block copolymer comprising a first block represented by Formula 4 and a second block comprising an aromatic structure having at least one halogen atom: wherein the R is hydrogen or an alkyl group having 1 to 4 carbon atom(s), the X is a single bond, an oxygen atom, a sulfur atom, —S(═O)2—, a carbonyl group, an alkylene group, an alkenylene group, an alkynylene group, —C(═O)—X1— or —X1—C(═O)—, where the X1 is an oxygen atom, a sulfur atom, —S(═O)2—, an alkylene group, an alkenylene group or an alkynylene group and the Y is a monovalent substituent comprising a cyclic structure to which a chain having 8 or more chain-forming atoms is linked. |
