Conformation orientation of syndiotactic polypropylene induced by deformation at different temperatures
文献类型：期刊论文
| 作者 | Zhang, Xiuqin; Kong, Lei; Rottstegge, Joerg; Xu, Duanfu; Wang, Dujin |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY B
 |
| 出版日期 | 2007-10-11 |
| 卷号 | 111期号:40页码:11642-11645 |
| ISSN号 | 1520-6106 |
| DOI | 10.1021/jp075995n |
| 英文摘要 | Two syndiotactic polypropylene (sPP) sample films (S-0 and S-90) with different initial structures were prepared in this paper by isothermal crystallization from the melt at 0 and 90 degrees C, respectively. The polymorphic transitions of the two samples induced by deformation at different temperatures (20, 40, and 60 degrees C) were investigated by rheo-optical FTIR spectroscopy. The results indicated that stretching leads to the transition from the helical to trans-planar conformation and improves the orientation of both helical and trans-planar conformations for the sPP films. With increasing stretching temperature, the conformational transitions for the two sPP samples are all suppressed, and the orientation behavior of the two samples appears completely different. The orientation degree of So decreases with increasing stretching temperature, while that of S-90 increases. These results suggest that the stretching temperature and initial structure have great influence on the conformation transition and orientation behavior of the sPP sample. On the basis of the experimental results, the schematic illustration of the conformation transition and orientation behavior of sPP during stretching has been proposed. |
| 语种 | 英语 |
| WOS记录号 | WOS:000249986900010 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/60617]  |
| 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, Beijing Natl Lab Mol Sci, Key Lab Engn Plastics,Joint Lab Polymer Sci & Mat, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xiuqin,Kong, Lei,Rottstegge, Joerg,et al. Conformation orientation of syndiotactic polypropylene induced by deformation at different temperatures[J]. JOURNAL OF PHYSICAL CHEMISTRY B,2007,111(40):11642-11645. |
| APA | Zhang, Xiuqin,Kong, Lei,Rottstegge, Joerg,Xu, Duanfu,&Wang, Dujin.(2007).Conformation orientation of syndiotactic polypropylene induced by deformation at different temperatures.JOURNAL OF PHYSICAL CHEMISTRY B,111(40),11642-11645. |
| MLA | Zhang, Xiuqin,et al."Conformation orientation of syndiotactic polypropylene induced by deformation at different temperatures".JOURNAL OF PHYSICAL CHEMISTRY B 111.40(2007):11642-11645. |
入库方式： OAI收割
来源：化学研究所
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