Two-way shape memory property and its structural origin of cross-linked poly(epsilon-caprolactone)
文献类型：期刊论文
| 作者 | Huang, Miaoming1; Dong, Xia1; Wang, Lili1; Zhao, Jun2; Liu, Guoming1; Wang, Dujin1 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2014 |
| 卷号 | 4期号:98页码:55483-55494 |
| ISSN号 | 2046-2069 |
| DOI | 10.1039/c4ra09385b |
| 英文摘要 | In this work, two-way shape memory (TWSM) properties and the corresponding structural origin of cross-linked poly(epsilon-caprolactone) (cPCL) with different gel contents obtained by adopting different weight percentages of benzoyl peroxide (BPO) were investigated. The effects of gel contents on melting temperatures, crystallization temperatures and crystallinity of the cPCL materials were studied with differential scanning calorimetry. The TWSM properties of the samples were determined by dynamic mechanical analysis. It was found that gel content was the key factor determining the TWSM behavior, and higher gel content would result in the so-called robust TWSM effect for cPCL samples (cPCLx, x denoting the weight percentage of BPO). Compared with cPCL10, cPCL5 had larger elongation and lower recovery capabilities due to its lower gel content. However, the sample with much lower gel content (cPCL3) displayed almost no TWSM behavior, implying that an appropriate gel content was responsible for the TWSM characteristic. The crystalline structure of cPCLx subsequently changed when subjected to external stress. As the samples were cooled down under constant stress, higher stress would lead to a more oriented crystalline structure. Furthermore, concurrent wide-angle and small-angle X-ray scattering investigations revealed the structural evolution occurring during the TWSM process, indicating that the crystal orientation along the stretching direction took place simultaneously with the elongation during the cooling process. |
| 语种 | 英语 |
| WOS记录号 | WOS:000344989800075 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/51257]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Dong, Xia |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, CAS Key Lab Engn Plast, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 2.Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Huang, Miaoming,Dong, Xia,Wang, Lili,et al. Two-way shape memory property and its structural origin of cross-linked poly(epsilon-caprolactone)[J]. RSC ADVANCES,2014,4(98):55483-55494. |
| APA | Huang, Miaoming,Dong, Xia,Wang, Lili,Zhao, Jun,Liu, Guoming,&Wang, Dujin.(2014).Two-way shape memory property and its structural origin of cross-linked poly(epsilon-caprolactone).RSC ADVANCES,4(98),55483-55494. |
| MLA | Huang, Miaoming,et al."Two-way shape memory property and its structural origin of cross-linked poly(epsilon-caprolactone)".RSC ADVANCES 4.98(2014):55483-55494. |
入库方式： OAI收割
来源：化学研究所
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