| abstract |
The (meth)acrylic copolymer of the present invention is (meth)acrylic acid having a structural unit (B) derived from the polysiloxane block-containing polymerizable monomer (b) represented by the following formula (b1). Copolymer. In formula (b1), R 30 represents a hydrogen atom or a methyl group, a represents an integer of 2 to 5, b represents an integer of 0 to 50, c represents an integer of 0 to 18, d represents a number of 1 to 1000, and e represents 1 A number of to 80, R 31 to R 39 respectively represent an alkyl group, an alkoxy group, a phenyl group, a substituted phenyl group, a phenoxy group or a substituted phenoxy group. |