接枝共聚物是多组分聚合物(或高分子合金)中最早获得大规模工业应用的一个大类。在HIPS(高抗冲聚苯乙烯)和ABS中,聚丁二烯接枝聚苯乙烯及接枝苯乙烯和丙烯腈共聚物分别起着关键作用,它们使橡胶-塑料相的良好结合成为可能,然而,经典的自由基聚合所得的接枝共聚物因其产物品种之局限性及结构的不确定性,研究难以深入, Graft copolymers are one of the earliest large-scale industrial applications in multi-component polymers (or polymer alloys). Polybutadiene-grafted polystyrene and grafted styrene and acrylonitrile copolymers, respectively, play a key role in HIPS (high impact polystyrene) and ABS, which make possible the good combination of rubber-plastic phases However, due to the limitation of product variety and the uncertainty of structure, the graft copolymers obtained by the classical free radical polymerization are hard to be studied deeply.