The influence of hard-segments on two-phase structure and shape memory properties of PCL-based segmented polyurethanes
文献类型：期刊论文
| 作者 | Ping, Peng; Wang, Wenshou; Chen, Xuesi; Jing, Xiabin |
| 刊名 | JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
 |
| 出版日期 | 2007-03-01 |
| 卷号 | 45期号:5页码:557-570 |
| 关键词 | Phase Separation Poly(Epsilon-caprolactone) Polyurethane Shape Memory |
| ISSN号 | 0887-6266 |
| DOI | 10.1002/polb.20974 |
| 英文摘要 | Poly(epsilon-caprolactone)-based segmented polyurethanes (PCLUs) were prepared from poly(epsilon-caprolactone) diol, diisocyanates (DI), and 1,4-butanediol. The DIs used were 4,4'-diphenylmethane diisocyanate (MDI), 2,4-toluenediisocyanate (TDI), iso-phorone diisocyanate (IPDI), and hexamethylene diisocyanate (HDI). Differential scanning calorimetry, small-angle X-ray scattering, and dynamic mechanical analysis were employed to characterize the two-phase structures of all PCLUs. It was found that HDI- and MDI-based PCLUs had higher degree of microphase separation than did IPDI- and TDI-based PCLUs, which was primarily due to the crystallization of HDI- and MDI-based hard-segments. As a result, the HDI-based PCLU exhibited the highest recovery force up to 6 MPa and slowest stress relaxation with increasing temperature. Besides, it was found that the partial damage in hard-segment domains during the sample deformation was responsible for the incomplete shape-recovery of PCLUs after the first deformation, but the damage did not develop during the subsequent deformation. (c) 2007 Wiley Periodicals, Inc. J Polym Sci Part 13: Polym Phys 45: 557-570, 2007. |
| 语种 | 英语 |
| WOS记录号 | WOS:000244267600005 |
| 出版者 | JOHN WILEY & SONS INC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/61517]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Jing, Xiabin |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ping, Peng,Wang, Wenshou,Chen, Xuesi,et al. The influence of hard-segments on two-phase structure and shape memory properties of PCL-based segmented polyurethanes[J]. JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,2007,45(5):557-570. |
| APA | Ping, Peng,Wang, Wenshou,Chen, Xuesi,&Jing, Xiabin.(2007).The influence of hard-segments on two-phase structure and shape memory properties of PCL-based segmented polyurethanes.JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS,45(5),557-570. |
| MLA | Ping, Peng,et al."The influence of hard-segments on two-phase structure and shape memory properties of PCL-based segmented polyurethanes".JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS 45.5(2007):557-570. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。