The effect of chain interpenetration on an ordering process in the early stage of polymer crystal nucleation
文献类型：期刊论文
| 作者 | Zhang, Zhuqing; Yang, Xiaozhen |
| 刊名 | POLYMER
 |
| 出版日期 | 2006-06-28 |
| 卷号 | 47期号:14页码:5213-5219 |
| 关键词 | Molecular Dynamics Degree Of Interpenetration Early Stage Of Crystallization |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2006.05.001 |
| 英文摘要 | In the present study, the degree of chain interpenetration was considered as a structural attribute of the entanglements in polymer chain system. Inter-chain radial distribution function (RDF) was used to perform this measurement. We applied this method to a model system, in which an ordering process in the early stage of polymer crystal nucleation at the atomistic level was simulated by means of molecular dynamics (MID). Initial chain structures possessed different degrees of interpenetration and underwent the ordering process at 400 K. Obtained results indicated that at the nanosecond scale the degree of interpenetration impedes the ordering process remarkably, which agrees with the experimental observation at laboratory time scale. Such behavior among chains indicates that at the atomistic level a creeping polymer chain is able to recognize if the neighbor group on the 'tube' is from the same chain or other chains. This recognition manifests that the reptation time of a chain would be influenced by the 'tube' composition or the degree of interpenetration. It also showed that the degree of interpenetration changes little during the ordering process, which means that the motion of the chain segments is mainly predominated by the ordering process rather than further adjusting the entanglement extent under the conditions simulated. (c) 2006 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000239356400040 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/59181]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, Xiaozhen |
| 作者单位 | Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Joint Lab Polymer Sci & Mat, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Zhuqing,Yang, Xiaozhen. The effect of chain interpenetration on an ordering process in the early stage of polymer crystal nucleation[J]. POLYMER,2006,47(14):5213-5219. |
| APA | Zhang, Zhuqing,&Yang, Xiaozhen.(2006).The effect of chain interpenetration on an ordering process in the early stage of polymer crystal nucleation.POLYMER,47(14),5213-5219. |
| MLA | Zhang, Zhuqing,et al."The effect of chain interpenetration on an ordering process in the early stage of polymer crystal nucleation".POLYMER 47.14(2006):5213-5219. |
入库方式： OAI收割
来源：化学研究所
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