苯乙烯参与了长支链的形成，并对长支链的形成有促进作用。
Styrene took part in the formation of long chain branches and played an important role.
随着温度的升高聚乙烯产物支化度和甲基支链含量都迅速增加，长支链含量则显著下降。
Branching degree of the polyethylenes and the content of methyl branch rise quickly with reaction temperature, but the content of long branches drops remarkably.
课题研究的关键是长支链接枝PP的生成以提高熔体强度以及降解、交联副反应的控制。
The hinges of this study included the formation of longer side chains in order to acquire higher bath strength and the control of degradation of iPP and cross-linking side reactions.
应用推荐