Combined effects between activating group Z and leaving group R in dithiocarbamates for controlling degradation and branching reactions of polypropylene
文献类型：期刊论文
| 作者 | Xing, Haiping1; Wan, Dong1,2; Qiu, Jian1; Wang, Yanhui1; Ma, Li1; Jiang, Zhiwei1; Tang, Tao1 |
| 刊名 | POLYMER
 |
| 出版日期 | 2014-10-09 |
| 卷号 | 55期号:21页码:5435-5444 |
| 关键词 | Polypropylene (Pp) Branched Degradation |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2014.09.005 |
| 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. |
| 语种 | 英语 |
| WOS记录号 | WOS:000343377800016 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/50101]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Jiang, Zhiwei |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 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. |
入库方式： OAI收割
来源：化学研究所
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