Coil extension stage in the cold drawing of glassy polymers
文献类型：期刊论文
| 作者 | Yang, XZ; Sun, J |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
 |
| 出版日期 | 2002-12-01 |
| 卷号 | 40期号:23页码:2646-2652 |
| 关键词 | Conformations Poly(Ethylene Terephthalate) Yield Recovery Process Cold Drawing Forced Elasticity Infrared Band |
| ISSN号 | 0887-6266 |
| DOI | 10.1002/polb.10325 |
| 英文摘要 | Cold drawing is known as a thermodynamically reversible process for glassy polymers. In the extension process, there might be a stage in which the global structure of chain coils extends in the drawing direction. This extension stage has not been clearly identified because of the lack of a quantitative relationship between the global structure evolution and the local structure reorientation. We have developed a theoretical method to elucidate the relationship, which is based on a simulated chain conformational distribution and a relationship between the chain conformations and the extension. Any local structure, such as the fraction of trans conformations of ethylene glycol of poly(ethylene terephthalate) (PET), can then be calculated with an ensemble average as a function of the system extension. Combined with infrared conformational. band measurements, the coil extension stage has been characterized in the cold drawing of amorphous PET. This stage does not start from the yielding point but instead begins nearly at the end of the stress softening. In the recovery process, the experimental measurements and theoretical predictions are well correlated. (C) 2002 Wiley Periodicals, Inc. |
| 语种 | 英语 |
| WOS记录号 | WOS:000179149300005 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/78909]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, XZ |
| 作者单位 | Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, XZ,Sun, J. Coil extension stage in the cold drawing of glassy polymers[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2002,40(23):2646-2652. |
| APA | Yang, XZ,&Sun, J.(2002).Coil extension stage in the cold drawing of glassy polymers.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,40(23),2646-2652. |
| MLA | Yang, XZ,et al."Coil extension stage in the cold drawing of glassy polymers".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 40.23(2002):2646-2652. |
入库方式： OAI收割
来源：化学研究所
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