Fluctuation-Assisted Crystallization of an iPP/PEOc Polymer Alloy Prepared on a Single Multicatalyst Reactor Granule
文献类型：期刊论文
| 作者 | Du, Jiang; Zhang, Xiaohua; Han, Charles C. |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
 |
| 出版日期 | 2009-01-15 |
| 卷号 | 47期号:2页码:166-172 |
| 关键词 | Concentration Fluctuation Crystallization Nucleation Phase Separation Polyolefin Alloy |
| ISSN号 | 0887-6266 |
| DOI | 10.1002/polb.21627 |
| 英文摘要 | The new fluctuation-assisted mechanism for nucleation and crystallization in the isotactic polypropylene/poly(ethylene-co-octene) alloy has been studied. We found that the liquid-liquid phase separation (LLPS) had a dominant, influence on the crystallization kinetics through the nucleation process. After LLPS, the nucleation of crystallization mainly occurred at the interface of the phase-separated domains. It is because that the concentration fluctuations of the LLPS induced the motion of polymer chains and possibly some segmental alignment and/or orientation in the concentration gradient regions through interdiffusion, which could assist the formation of nuclei for crystallization. In other words, the usual nucleation energy barrier could be overcome (or at least partially) by the concentration fluctuation growth of LLPS in the unstable regions. This could be viewed as a new kind of heterogeneous nucleation and could be an addition to the regular nucleation and growth mechanism for crystallization. (C) 2008 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 166-172, 2009 |
| 语种 | 英语 |
| WOS记录号 | WOS:000262330300005 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/65859]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Han, Charles C. |
| 作者单位 | Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat, State Key Lab Polymer Phys & Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Jiang,Zhang, Xiaohua,Han, Charles C.. Fluctuation-Assisted Crystallization of an iPP/PEOc Polymer Alloy Prepared on a Single Multicatalyst Reactor Granule[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2009,47(2):166-172. |
| APA | Du, Jiang,Zhang, Xiaohua,&Han, Charles C..(2009).Fluctuation-Assisted Crystallization of an iPP/PEOc Polymer Alloy Prepared on a Single Multicatalyst Reactor Granule.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,47(2),166-172. |
| MLA | Du, Jiang,et al."Fluctuation-Assisted Crystallization of an iPP/PEOc Polymer Alloy Prepared on a Single Multicatalyst Reactor Granule".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 47.2(2009):166-172. |
入库方式： OAI收割
来源：化学研究所
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