Effect of comonomer on thermal/mechanical and shape memory property of L-lactide-based shape-memory copolymers
文献类型：期刊论文
| 作者 | Min, Changchun; Cui, Wenjin; Bei, Jianzhong; Wang, Shenguo |
| 刊名 | POLYMERS FOR ADVANCED TECHNOLOGIES
 |
| 出版日期 | 2007-04-01 |
| 卷号 | 18期号:4页码:299-305 |
| 关键词 | Shape-memory Polymers Thermal Properties Mechanical Properties L-lactide Synthesis |
| ISSN号 | 1042-7147 |
| DOI | 10.1002/pat.865 |
| 英文摘要 | In this study, three kinds of L-lactide-based copolymers, poly(lactide-co-glycolide) (PLGA), poly(lactide-co-p-dioxanone) (PLDON) and poly(lactide-co-caprolactone) (PLC), were synthesized by the copolymerization Of L-lactide W with glycolide (G), or p-dioxanone (DON) or epsilon-caprolactone (CL), respectively. The copolymers were easily soluble in common organic solvents. The compositions of the copolymers were determined by H-1-NMR. Thermal/mechanical and shape-memory properties of the copolymers with different comonomers were compared. Moreover, the effect of the chain flexibility of the comonomers on thermal/mechanical and shape-memory properties of the copolymers were investigated. The copolymers with appropriate lactyl content showed good shape-memory properties where both the shape fixity rate (R-f)and the shape recovery rate (R-f) could exceed 95%. It was found that the comonomers with different flexible molecular chain have different effects on their thermal/mechanical and shape-memory properties. Among them, PLGA has the highest mechanical strength and recovery rate while PLC copolymer has high recovery rate when the lactyl content exceeded 85% and the lowest transition temperature (T-trans) Copyright (C) 2007 John Wiley & Sons, Ltd. |
| 语种 | 英语 |
| WOS记录号 | WOS:000245962300008 |
| 出版者 | JOHN WILEY & SONS LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/62551]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Shenguo |
| 作者单位 | Chinese Acad Sci, Inst Chem, State Key Lab Polymer Phys & Chem, BNLMS, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Min, Changchun,Cui, Wenjin,Bei, Jianzhong,et al. Effect of comonomer on thermal/mechanical and shape memory property of L-lactide-based shape-memory copolymers[J]. POLYMERS FOR ADVANCED TECHNOLOGIES,2007,18(4):299-305. |
| APA | Min, Changchun,Cui, Wenjin,Bei, Jianzhong,&Wang, Shenguo.(2007).Effect of comonomer on thermal/mechanical and shape memory property of L-lactide-based shape-memory copolymers.POLYMERS FOR ADVANCED TECHNOLOGIES,18(4),299-305. |
| MLA | Min, Changchun,et al."Effect of comonomer on thermal/mechanical and shape memory property of L-lactide-based shape-memory copolymers".POLYMERS FOR ADVANCED TECHNOLOGIES 18.4(2007):299-305. |
入库方式： OAI收割
来源：化学研究所
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