详细信息

PP/PS就地相容化研究  ( EI收录)  

In-Situ Compatibilization of PP/PS Blends

文献类型:期刊文献

中文题名:PP/PS就地相容化研究

英文题名:In-Situ Compatibilization of PP/PS Blends

作者:徐建平[1,2];承民联[1];谢赟[1];陈建定[2]

机构:[1]江苏工业学院材料科学与工程系,江苏常州213016;[2]华东理工大学材料学院,上海200237

年份:2009

卷号:25

期号:3

起止页码:57

中文期刊名:高分子材料科学与工程

外文期刊名:Polymer Materials Science & Engineering

收录:CSTPCD;;EI(收录号:20091512029186);Scopus;北大核心:【北大核心2008】;CSCD:【CSCD2011_2012】;

基金:江苏省自然科学基金资助项目(BK2003028)

语种:中文

中文关键词:聚丙烯;聚苯乙烯;增容;Friedel-Crafts烷基化反应

外文关键词:polypropylene; polystyrene; compatibilization; Friedel-Crafts alkylation

摘要:考察了无水AlCl3用量对PP、PS大分子间Friedel-Crafts烷基化反应及PP/PS合金性能的影响。通过扭矩分析、接枝比和力学性能测定、界面形态的观察,结果表明,加入适量的无水AlCl3可以引发PP、PS间的Friedel-Crafts烷基化反应,生成的PP-g-PS接枝物能起到就地增容PP/PS的作用,使合金的力学性能得到显著提高;加大AlCl3用量后,由于其引起的PS、PP分子链的断链反应起主导作用,合金的性能降低。
Effects of the amount of anhydrous aluminum chloride (AlCl3) on Friedel-Crafts alkylation reaction between polypropylene(PP) and polystyrene(PS) and properties of PP/PS blends were examined. The study on mechanic properties and interface morphology of PP/PS blends in the presence of AlCl3 showed that, with moderate catalyst amount, a copolymer of PP-g-PS can be formed during melt blending of PP/PS blends via a Friedel-Crafts benzene ring alkylation. The grafting co-polymer behaves as a compatilizer of PP/PS blends and improves their mechanical properties. However, when the amount of AlCl3 is increased, the properties of blends become worse due to the chain scission of PS and PP.

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