Controlling melt reactions during preparing long chain branched polypropylene using copper N,N-dimethyldithiocarbamate
文献类型：期刊论文
| 作者 | Zhang, Zhenjiang1,2; Xing, Haiping1,2; Qiu, Jian1; Jiang, Zhiwei1,2; Yu, Haiou1,2; Du, Xiaohua1,2; Wang, Yanhui1; Ma, Li1; Tang, Tao1 |
| 刊名 | POLYMER
 |
| 出版日期 | 2010-03-24 |
| 卷号 | 51期号:7页码:1593-1598 |
| 关键词 | Long Chain Branch Melt Reaction Polypropylene |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2010.01.063 |
| 英文摘要 | Effect of copper N,N-dimethyldithiocarbamate (CDD) on melt reactions during preparing long chain branched polypropylenes (LCB-PP) via free radical grafting was studied. The structure and theological properties of the modified PPs were characterized. The results showed that CDD could efficiently control two side reactions, i.e. degradation of PP backbone and homopolymerization of multifunctional monomer (trimethylol propane triacrylate (TMPTA)) in the presence of peroxide. Meanwhile the addition of CDD also increased the efficiency of forming LCB structure. The reaction between CDD and active free radicals (carbon centered and alkoxy species) led to forming in situ dithiocarbamate radicals, which cannot attack PP backbone and are weaker initiator for TMPTA. The resultant dithiocarbamate radicals could react with the PP macroradicals and the acrylic radicals reversibly, which prolong the life time of PP macroradical and increase the reaction probability between macroradicals. The obtained LCB-PP showed high melt strength. (C) 2010 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000276060400008 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/69521]  |
| 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,Xing, Haiping,Qiu, Jian,et al. Controlling melt reactions during preparing long chain branched polypropylene using copper N,N-dimethyldithiocarbamate[J]. POLYMER,2010,51(7):1593-1598. |
| APA | Zhang, Zhenjiang.,Xing, Haiping.,Qiu, Jian.,Jiang, Zhiwei.,Yu, Haiou.,...&Tang, Tao.(2010).Controlling melt reactions during preparing long chain branched polypropylene using copper N,N-dimethyldithiocarbamate.POLYMER,51(7),1593-1598. |
| MLA | Zhang, Zhenjiang,et al."Controlling melt reactions during preparing long chain branched polypropylene using copper N,N-dimethyldithiocarbamate".POLYMER 51.7(2010):1593-1598. |
入库方式： OAI收割
来源：化学研究所
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