考察了苯乙烯-二元乙丙橡胶嵌段共聚物(S EP)和三元乙丙橡胶(EPDM)对聚丙烯(PP)的增韧作用。
The effect on the toughening of polypropylene (PP) by styrene-ethyl ene propylene diblock copolymer (SEP) as well as EPDM was studied.
本文以苯乙烯和丙烯酸酯的低分子共聚物为B段，以含有极性基团的单体为A段合成了A—B嵌段型颜料分散剂。
An A-B blocked pigment-dispersing agent has been synthesised , in which the A block is a monomer with polar groups and the B fo'oek is the oligomer of styrene and acrylate with lower molecular weight.
所述 组合物包含至少一种是包括由丙烯衍生的单元的聚合物的组分，和至少 一种是苯乙烯类嵌段共聚物的组分。
The compositions incorporate at least one component that is a polymer including propylene-derived units and at least one component that is a styrenic block copolymer.
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