Novel block copolymer and use thereof

Hydrogenated block copolymers comprising a polymer block A and a polymer block B are disclosed. Prior to hydrogenation, the polymer block A has a first vinyl aromatic compound and the polymer block B contains monomers a) a styrene compound having a radically reactive group, b) at least one conjugated diene, and optionally (c) a second vinyl aromatic compound that is the same as or different from the first vinyl aromatic compound. And the repeating unit of the monomer a) accounts for 10-70 wt% of the total block copolymer and 10-80 wt% of the total block B. After hydrogenation, the polymerization unit derived from monomer b) has an RU of 0-1.5 meq/g hydrogenated block copolymer. The hydrogenated block copolymers exhibit reactivity and higher flow properties prior to curing, excellent mechanical properties after curing, improved flame retardancy, and good solvent resistance. 公开了包含聚合物嵌段A和聚合物嵌段B的氢化的嵌段共聚物。在氢化之前，聚合物嵌段A具有第一乙烯基芳族化合物，聚合物嵌段B含有单体a)具有自由基反应性基团的苯乙烯化合物、b)至少一种共轭二烯，和任选的(c)与第一乙烯基芳族化合物相同或不同的第二乙烯基芳族化合物。单体a)的重复单元