Phase structure and transitions in a poly(methyloctadecylsilane) oligomer
文献类型：期刊论文
| 作者 | Wu, ZM; Xie, FC; Hu, ZJ; Liu, JP; Du, BY; He, TB |
| 刊名 | POLYMER
 |
| 出版日期 | 2001-02-01 |
| 卷号 | 42期号:3页码:1047-1053 |
| 关键词 | Polysilane Conformation Crystallization |
| ISSN号 | 0032-3861 |
| 英文摘要 | A poly(methyloctadecylsilane) oligomer was synthesized by a typical Wurtz coupling reaction. Upon cooling, three transitions were observed at temperatures of 39.9, 37.5 and 33.9 degreesC at a rate of 2.5 degreesC/min in differential scanning calorimetry (DSC). The first transition, with enthalpy change of 0.47 kT/mol and supercooling of 0.2 degreesC, was characteristic of the conformational change in the Si-Si backbone into an all-trans conformation, which was detected by temperature-dependent Fourier transform infrared (FT-FR) spectroscopy. The second and the third transitions with large supercooling were identified as the formation of two-dimensional hexagonal crystal packing and three-dimensional two-chain orthorhombic crystal packing, respectively. The crystal structure was determined by the combination of WAXD and transmission electron microscopy (TEM) experiments. (C) 2000 Elsevier Science Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000089962500022 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/76733]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | He, TB |
| 作者单位 | Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, ZM,Xie, FC,Hu, ZJ,et al. Phase structure and transitions in a poly(methyloctadecylsilane) oligomer[J]. POLYMER,2001,42(3):1047-1053. |
| APA | Wu, ZM,Xie, FC,Hu, ZJ,Liu, JP,Du, BY,&He, TB.(2001).Phase structure and transitions in a poly(methyloctadecylsilane) oligomer.POLYMER,42(3),1047-1053. |
| MLA | Wu, ZM,et al."Phase structure and transitions in a poly(methyloctadecylsilane) oligomer".POLYMER 42.3(2001):1047-1053. |
入库方式： OAI收割
来源：化学研究所
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