用大分子单体与小分子单体共聚是七十年代初才出现的合成接枝共聚物的一种新方法。通过共聚合反应而不是接枝反应同时形成主干及支链。这种接枝共聚物由于形成支链的大分子单体是预先合成的,其分子量分布较窄,又可调节控制,所以合成的接枝共聚物支链长短比较均一,副反应较少,链结构比较明确,因此也易于表征。 Copolymerization of macromonomer with small molecule monomer is a new method of synthesizing graft copolymer which appeared only in the seventies. The trunk and branches are formed simultaneously by the copolymerization rather than the grafting reaction. This graft copolymer is a branched macromonomer is pre-synthesized, its molecular weight distribution is narrow, and can be adjusted to control, so the synthesis of the graft copolymer is relatively uniform length, less side effects, the chain The structure is clear and therefore easy to characterize.