The crystallization and crystal transition of PVDF in PAN nano-tube
文献类型：期刊论文
| 作者 | Luo, Hongjun2,3; Huang, Yong1,2,4; Wang, Dongshan2 |
| 刊名 | POLYMER
 |
| 出版日期 | 2013-08-02 |
| 卷号 | 54期号:17页码:4710-4718 |
| 关键词 | Poly(Vinylidene Fluoride) (Pvdf) Confined Crystallization Crystal Transition |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2013.06.036 |
| 英文摘要 | One-dimensional confinements were fabricated by coaxial electrospinning and confined crystallization as well as crystal transition of poly(vinylidene fluoride) (PVDF) were studied. It was found that the PVDF can be confined in the nano-tube with the diameter from 50 nm to 350 nm, formed by polyacrylonitrile (PAN). Since the crystallization temperature of PVDF is higher than the glass transition temperature of PAN, the crystallization of PVDF took place in the soft PAN nano-tubes. The confinement weakened the ability of PVDF crystallization, resulting in the crystallinity (X-c) decreasing sharply in the confined condition and the crystallization temperature (T-c) shifted to very low temperature when the confinement diameter was smaller than 75 nm. The observation by FTIR indicated that there was transition in absorption for during cooling where the absorption abruptly rose up at certain temperature and ended immediate raise at a low temperature. The change of temperature range for transition was similar with the T-c checked by DSC, which was related to the crystallization. Also, it was observed that the crystalline structure in as-spun fibers was almost beta-phase, and beta-crystal transformed into alpha-crystal at different degrees in confined and un-confined PVDF. These results inferred the chain orientation in company with confinements affected the crystallization of PVDF. (c) 2013 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000322687400039 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/53783]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Huang, Yong |
| 作者单位 | 1.Chinese Acad Sci, Tech Inst Phys & Chem, Natl Engn Res Ctr Engn Plast, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Chem, Guangzhou 510650, Guangdong, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Luo, Hongjun,Huang, Yong,Wang, Dongshan. The crystallization and crystal transition of PVDF in PAN nano-tube[J]. POLYMER,2013,54(17):4710-4718. |
| APA | Luo, Hongjun,Huang, Yong,&Wang, Dongshan.(2013).The crystallization and crystal transition of PVDF in PAN nano-tube.POLYMER,54(17),4710-4718. |
| MLA | Luo, Hongjun,et al."The crystallization and crystal transition of PVDF in PAN nano-tube".POLYMER 54.17(2013):4710-4718. |
入库方式： OAI收割
来源：化学研究所
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