A novel copolymer, graft copolymer, copolymer particles, flame retardant, and resin composition are provided. A copolymer including a polymer (A) segment having a glass transition temperature not more than -10°C, and a polymer (C) segment having at least a unit derived from a monomer (B) which has two or more of aromatic rings and one or more radical reactive groups in one molecule; a graft copolymer having the component (B) grafted onto the component (A); and copolymer particles thereof are obtained. A flame retardant resin composition is obtained by using the copolymer as a flame retardant and blending the flame retardant with the resin.
本发明提供了一种新型共聚物、接枝共聚物、共聚物颗粒、阻燃剂和
树脂组合物。 本发明提供了一种新型共聚物、接枝共聚物、共聚物颗粒、阻燃剂和
树脂组合物。该共聚物包括
玻璃化转变温度不高于-10℃的聚合物(A)段和至少有一个单元来自单体(B)的聚合物(C)段,单体(B)在一个分子中具有两个或两个以上的芳香环和一个或一个以上的自由基反应基团;接枝共聚物,其组分(B)接枝到组分(A)上;以及共聚物颗粒。 使用该共聚物作为阻燃剂,并将该阻燃剂与
树脂混合,即可获得阻燃
树脂组合物。