Structural variation of melt-crystallized PTT during the heating process revealed by FTIR and SAXS
文献类型：期刊论文
| 作者 | Chen Zhen; Yan ShouKe |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2013 |
| 卷号 | 58期号:3页码:328-335 |
| 关键词 | Poly(Trimethylene Terephthalate) Relaxation Of Rigid Amorphous Phase Recrystallization |
| ISSN号 | 1001-6538 |
| DOI | 10.1007/s11434-012-5589-x |
| 英文摘要 | Time-resolved FTIR, WAXD/SAXS and DSC have been used to investigate the structural variation of non-isothermally crystallized poly(trimethylene terephthalate) (PTT) during the heating process. The three-phase model: the lamellar phase, the mobile amorphous phase (MAP) and the rigid amorphous phase (RAP) between lamellae is suggested to describe the structure of melt-crystallized PTT. According to FTIR results, the conformation of RAP in the constrained state is different from that of MAP. The increased content of amorphous phase in the temperature range from 120 to 192A degrees C is ascribed to the relaxation of RAP, rather than the melting of defective crystals. When the PTT is heated to a temperature above 192A degrees C, the recrystallization/crystal perfection of original defective lamellae occurs without a pre-melting process, which leads to an increase in lamellar thickness and probably connects two adjacent lamellar stacks. This is responsible for an increase in crystallinity as well as a higher major melting temperature. |
| 语种 | 英语 |
| WOS记录号 | WOS:000313962600005 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/54087]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yan ShouKe |
| 作者单位 | Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen Zhen,Yan ShouKe. Structural variation of melt-crystallized PTT during the heating process revealed by FTIR and SAXS[J]. CHINESE SCIENCE BULLETIN,2013,58(3):328-335. |
| APA | Chen Zhen,&Yan ShouKe.(2013).Structural variation of melt-crystallized PTT during the heating process revealed by FTIR and SAXS.CHINESE SCIENCE BULLETIN,58(3),328-335. |
| MLA | Chen Zhen,et al."Structural variation of melt-crystallized PTT during the heating process revealed by FTIR and SAXS".CHINESE SCIENCE BULLETIN 58.3(2013):328-335. |
入库方式： OAI收割
来源：化学研究所
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