Biodegradable shape-memory polymer-polylactideco-poly(glycolide-co-caprolactone) multiblock copolymer
文献类型：期刊论文
| 作者 | Min, CC; Cui, WJ; Bei, JZ; Wang, SG |
| 刊名 | POLYMERS FOR ADVANCED TECHNOLOGIES
 |
| 出版日期 | 2005-08-01 |
| 卷号 | 16期号:8页码:608-615 |
| 关键词 | Shape-memory Multiblock Copolymer Biodegradable Synthesis Strain |
| ISSN号 | 1042-7147 |
| DOI | 10.1002/pat.624 |
| 英文摘要 | In this study, biodegradable shape-memory polymers-polylactide-co-poly(glycolide-co-caprolactone) multiblock (PLAGC) copolymers-were synthesized by the coupling reaction of both macrodiols of polylactide (PLLA-diol) and poly(glycolide-co-caprolactone) (PGC-diol) in the presence of 1,6-hexanediisocyanate as coupling agent. The copolymers formed were found to be thermoplastic and easily soluble in common solvents. The compositions of the copolymers were determined by H-1-NMR and the influences of segment lengths and contents of both macrodiols on the properties of the PLAGC copolymers were investigated. It was found that the copolymers had adjustable mechanical properties which depended on contents and segment lengths of both macrodiols. The copolymers showed such good shape-memory properties that the strain fixity rate (R-f) and the strain recovery rate (R-r) exceed 90%. By means of adjusting the compositions of the copolymers, PLAGC copolymers with transition temperatures around 45 degrees C could be obtained. The degradation rate determination showed that the PLAGC copolymers have fast degradation rates, the mechanical strengths of the PLAGC copolymers would be completely lost within 1-2 months depending on molecular weights and contents of the both segments of PLLA and PGC. Copyright (c) 2005 John Wiley & Sons, Ltd. |
| 语种 | 英语 |
| WOS记录号 | WOS:000231190800005 |
| 出版者 | JOHN WILEY & SONS LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/56889]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, SG |
| 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 | Min, CC,Cui, WJ,Bei, JZ,et al. Biodegradable shape-memory polymer-polylactideco-poly(glycolide-co-caprolactone) multiblock copolymer[J]. POLYMERS FOR ADVANCED TECHNOLOGIES,2005,16(8):608-615. |
| APA | Min, CC,Cui, WJ,Bei, JZ,&Wang, SG.(2005).Biodegradable shape-memory polymer-polylactideco-poly(glycolide-co-caprolactone) multiblock copolymer.POLYMERS FOR ADVANCED TECHNOLOGIES,16(8),608-615. |
| MLA | Min, CC,et al."Biodegradable shape-memory polymer-polylactideco-poly(glycolide-co-caprolactone) multiblock copolymer".POLYMERS FOR ADVANCED TECHNOLOGIES 16.8(2005):608-615. |
入库方式： OAI收割
来源：化学研究所
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