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加2％星形嵌段共聚物有利于聚苯乙烯与氯醇橡-胶的共混，使产物的物理机械性能有所提高。
Addition of 2% of the amphiphilic copolymer is beneficial to the blending of polystyrene and epichlorohydrine rubber, improving the physico-mechanical properties of the blend.
通过原子转移自由基聚合可以方便地合成各种结构的模型聚合物，包括嵌段、接枝、星形及超支化共聚物等。
The technique of ATRP has been used to synthesize the model polymer with various structure, block copolymer, graft copolymer, star-shaped polymer and hyperbranched polymer.
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