Combined effects between activating group Z and leaving group R in dithiocarbamates for controlling degradation and branching reactions of polypropylene | |
Xing, Haiping ; Wan, Dong ; Qiu, Jian ; Wang,Yanhui ; Ma,Li ; Jiang,Zhewi ; Tang,Tao | |
刊名 | polymer
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2014 | |
卷号 | 55期号:21页码:5435-5444 |
关键词 | TRANSFER RAFT POLYMERIZATION HETEROAROMATIC RING DERIVATIVES FREE-RADICAL POLYMERIZATION RHEOLOGICAL PROPERTIES MOLECULAR-STRUCTURE ELECTRON-BEAM MELT POLYETHYLENE |
通讯作者 | jiang,zw |
英文摘要 | four dithiocarbamates with different chemical structures (s-propyl n,n-dipropyldithiocarbamate, s-allyl n,n-dipropyldithiocarbamate, s-propyl n-pyrrolocarbodithioate and s-allyl n-pyrrolocarbodithioate) were used to adjust the melt radical reaction of polypropylene (pp). the combined effects between activating group z (n,n-dipropyl and n-pyrrolo) and leaving group r(allyl and propyl) in the dithiocarbamates on melt reaction of pp were studied in the presence of peroxide and trimethylolpropane triacrylate monomer. the results from h-1 nmr, ftir, gpc, theological measurements and model experiments showed that chemical structures of activating group z and leaving group r played a key role in the molecular structures and melt properties of modified pp samples. the presence of s-allyl n-pyrrolocarbodithioate with stronger activating group n-pyrrolo and easier leaving group allyl led to the formation of long chain branching structure with more branched points (comb-like topology). the possible reactions in the above systems were also discussed. (c) 2014 elsevier ltd. all rights reserved. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000343377800016 |
内容类型 | 期刊论文 |
源URL | [http://ir.ciac.jl.cn/handle/322003/57316] ![]() |
专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
推荐引用方式 GB/T 7714 | Xing, Haiping,Wan, Dong,Qiu, Jian,et al. Combined effects between activating group Z and leaving group R in dithiocarbamates for controlling degradation and branching reactions of polypropylene[J]. polymer,2014,55(21):5435-5444. |
APA | Xing, Haiping.,Wan, Dong.,Qiu, Jian.,Wang,Yanhui.,Ma,Li.,...&Tang,Tao.(2014).Combined effects between activating group Z and leaving group R in dithiocarbamates for controlling degradation and branching reactions of polypropylene.polymer,55(21),5435-5444. |
MLA | Xing, Haiping,et al."Combined effects between activating group Z and leaving group R in dithiocarbamates for controlling degradation and branching reactions of polypropylene".polymer 55.21(2014):5435-5444. |
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