Novel wide band-gap polymer utilizing fused hetero-aromatic unit for efficient polymer solar cells and field-effect transistors
文献类型：期刊论文
| 作者 | Dang, Dongfeng; Zhou, Pei; Zhong, Juan; Fan, Jiang; Wang, Zongrui; Wang, Yafei; Pei, Yong; Bao, Xichang; Yang, Renqiang; Hu, Wenping |
| 刊名 | POLYMER
 |
| 出版日期 | DEC 15 2014 |
| 卷号 | 55期号:26页码:6708-6716 |
| 英文摘要 | Polymorphism and crystal transition are of great significance for property mediation in polymer materials. Isotactic polypropylene (iPP) with beta - crystal has been widely utilized for the preparation of high performance plastics or films. In the present work, the structural evolution of initially isotropic beta - nucleated iPP (beta - iPP) during uniaxial stretching at different temperatures was investigated by in situ X - ray scattering using synchrotron radiation. The wide - angle X - ray scattering (WAXS) results confirmed that the beta - crystal transformed either to the mesophase at lower temperature (30 degrees C) or to the alpha - crystal at higher temperature (60,100 and 120 degrees C) during stretching. An interesting orientation of beta - crystal with molecular chains perpendicular to the tensile direction was identified. As revealed by small - angle X - ray scattering (SAXS), cavitation took place in beta - iPP stretched at temperatures lower than 120 degrees C. The size and shape of the cavities were observed by scanning electron microscope. A deformation mechanism of beta - iPP combining the crystal transition, cavitation and orientation was proposed. (C) 2014 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38577]  |
| 专题 | 化学研究所_其它 |
| 推荐引用方式 GB/T 7714 | Dang, Dongfeng,Zhou, Pei,Zhong, Juan,et al. Novel wide band-gap polymer utilizing fused hetero-aromatic unit for efficient polymer solar cells and field-effect transistors[J]. POLYMER,DEC ,55(26):6708-6716. |
| APA | Dang, Dongfeng.,Zhou, Pei.,Zhong, Juan.,Fan, Jiang.,Wang, Zongrui.,...&Zhu, Weiguo.(DEC ).Novel wide band-gap polymer utilizing fused hetero-aromatic unit for efficient polymer solar cells and field-effect transistors.POLYMER,55(26),6708-6716. |
| MLA | Dang, Dongfeng,et al."Novel wide band-gap polymer utilizing fused hetero-aromatic unit for efficient polymer solar cells and field-effect transistors".POLYMER 55.26(DEC ):6708-6716. |
入库方式： OAI收割
来源：化学研究所
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