Controlling the evolution of polypropylene microstructure during melt free radical modification using zinc dithiocarbamate with different N-substituted groups
文献类型：期刊论文
| 作者 | Zhang, Zhenjiang1,2; Wan, Dong1,2; An, Yanjie1,2; Liu, Feng1,2; Xing, Haiping1,2; Wang, Lu1,2; Jiang, Zhiwei1,2; Tang, Tao1 |
| 刊名 | POLYMER DEGRADATION AND STABILITY
 |
| 出版日期 | 2011-04-01 |
| 卷号 | 96期号:4页码:653-659 |
| 关键词 | Degradation Long Chain Branched Microstructure Polypropylene |
| ISSN号 | 0141-3910 |
| DOI | 10.1016/j.polymdegradstab.2010.12.010 |
| 英文摘要 | The effects of zinc dithiocarbamates on degradation and branching of polypropylene (PP) were studied during melt radical modification using a tri-functional monomer (trimethylol propane triacrylate (TMPTA)). High-temperature size-exclusion chromatography (HT-SEC) coupled with differential refractive index detector (DRI), light scattering detector (LSD) and viscometer detector (VD) and rotational rheometry were used to analyse the microstructure of modified PP samples. The chemical structure of the N-substituted group showed an important influence in controlling the evolution of PP microstructure during melt radical reaction. The chain cleavage of PP was controlled in the presence of zinc N, N-dimethyldithiocarbamate (ZDMC), and a substantial long chain branched (LCB) fraction was formed. Without co-agent, the molecular weight of PP decreased measurably, and only a minor LCB fraction was formed. Importantly, considerable amounts of highly branched (microgel and hyperbranched) structures were formed in this case. (C) 2011 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000288877300034 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/73679]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Tang, Tao |
| 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 | Zhang, Zhenjiang,Wan, Dong,An, Yanjie,et al. Controlling the evolution of polypropylene microstructure during melt free radical modification using zinc dithiocarbamate with different N-substituted groups[J]. POLYMER DEGRADATION AND STABILITY,2011,96(4):653-659. |
| APA | Zhang, Zhenjiang.,Wan, Dong.,An, Yanjie.,Liu, Feng.,Xing, Haiping.,...&Tang, Tao.(2011).Controlling the evolution of polypropylene microstructure during melt free radical modification using zinc dithiocarbamate with different N-substituted groups.POLYMER DEGRADATION AND STABILITY,96(4),653-659. |
| MLA | Zhang, Zhenjiang,et al."Controlling the evolution of polypropylene microstructure during melt free radical modification using zinc dithiocarbamate with different N-substituted groups".POLYMER DEGRADATION AND STABILITY 96.4(2011):653-659. |
入库方式： OAI收割
来源：化学研究所
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