Provided are a (meth)acrylic block copolymer exhibiting good active energy ray curability, in particular, curability of a blend thereof with an acrylate monomer, and the (meth)acrylic block copolymer. The (meth)acrylic block copolymer includes a methacrylic polymer block (A) having an active energy ray curable group including a partial structure represented by the general formula (1) below wherein R1 denotes a hydrocarbon group having 1 to 10 carbon atoms, and W denotes a saturated hydrocarbon group having 1 to 10 carbon atoms, and an acrylic polymer block (B) having no active energy ray curable groups.
本发明提供了一种(甲基)
丙烯酸嵌段共聚物,具有良好的活性能量射线固化性,特别是其与
丙烯酸酯单体共混的固化性,以及该(甲基)
丙烯酸嵌段共聚物。(甲基)
丙烯酸嵌段共聚物包括
甲基丙烯酸聚合物嵌段(A)和
丙烯酸聚合物嵌段(B),前者具有活性能量射线可固化基团,其部分结构如下式(1)所示,其中 R1 表示具有 1 至 10 个碳原子的烃基,W 表示具有 1 至 10 个碳原子的饱和烃基,后者不具有活性能量射线可固化基团。