A new grafting monomer for synthesizing long chain branched polypropylene through melt radical reaction
A new grafting monomer for synthesizing long chain branched polypropylene through melt radical reaction
复制标题
熔融自由基反应合成长链支化聚丙烯的新型接枝单体
DOI:
10.1016/j.polymer.2011.11.033
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发表时间:
2012-01
期刊:
影响因子:
4.6
通讯作者:
Zhang, Zhijie
中科院分区:
文献类型:
--
作者:
Xing, Haiping;Wang, Lu;Tang, Tao;Zheng, Jun;An, Yanjie;Zhang, Zhenjiang;Wan, Dong;Tan. Haiying;Zhang, Zhijie
A grafting monomer (p-(3-butenyl)styrene, BS)) containing two carbon–carbon double-bonds with different reactivity was used in melt radical reaction to prepare long chain branched polypropylene (LCB-PP). High-temperature size-exclusion (HT-SEC) coupled with triple detectors, rheometer and NMR were used to characterize the microstructure of the resultant LCB-PP. BS showed double functions in mediating radical reaction, i.e. stabilizing macroradicals and promoting branching reaction. Compared to styrene and divinylbenzene, using BS as a grafting monomer led to the formation of more uniformly distributed LCB structure on the PP backbone. Thus the resultant sample showed strain hardening in extensional flow and had high melt strength.
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影响因子:
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通讯作者:
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影响因子:
5.5
作者:
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