Stress-induced structure transition of syndiotactic polypropylene via melt spinning
文献类型：期刊论文
| 作者 | Zhang, Xiuqin; Li, Rongbo; Kong, Lei; Wang, Dujin |
| 刊名 | POLYMER
 |
| 出版日期 | 2008-03-03 |
| 卷号 | 49期号:5页码:1350-1355 |
| 关键词 | Syndiotactic Polypropylene Structure Transition Melt Spinning |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2008.01.019 |
| 英文摘要 | Syndiotactic polypropylene (sPP) fiber was prepared by melt spinning with the taken-up velocity of 200-700 m/min, the conformation and crystallization of which were systematically investigated by a combination of Fourier transform infrared (FTIR) spectroscopy, wide-angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC). The results indicated that sPP fibers consist of form I crystal with helical conformation at the spinning velocity of 200-300 m/min, and the crystallinity and orientation are improved with the increase of spinning velocity in this range. As the spinning velocity exceeds 300 m/min, sPP fibers contain mainly mesophase with trans-planar conformation and the content of form I decreases correspondingly. The crystallization behavior of sPP fiber with spinning velocity is different from that of most other crystalline polymers, i.e., the theory of orientation-induced crystallization is not well conformed to. For sPP, form I comprising of helical conformation is thermodynamically stable, though extensional stress can lead to transition from helical to trans-planar conformation, which is not favorable for the crystallization of form 1. (C) 2008 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000254356400027 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/63695]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Dujin |
| 作者单位 | Chinese Acad Sci, Inst Chem, Joint Lab Polymer Sci & Mat,Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiuqin,Li, Rongbo,Kong, Lei,et al. Stress-induced structure transition of syndiotactic polypropylene via melt spinning[J]. POLYMER,2008,49(5):1350-1355. |
| APA | Zhang, Xiuqin,Li, Rongbo,Kong, Lei,&Wang, Dujin.(2008).Stress-induced structure transition of syndiotactic polypropylene via melt spinning.POLYMER,49(5),1350-1355. |
| MLA | Zhang, Xiuqin,et al."Stress-induced structure transition of syndiotactic polypropylene via melt spinning".POLYMER 49.5(2008):1350-1355. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。