Biodegradable polyurethane based on random copolymer of L-lactide and epsilon-caprolactone and its shape-memory property | |
Wang, Wenshou; Ping, Peng; Chen, Xuesi; Jing, Xiabin | |
刊名 | JOURNAL OF APPLIED POLYMER SCIENCE
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2007-06-15 | |
卷号 | 104期号:6页码:4182-4187 |
关键词 | Shape Memory Glass Transition Temperature Polyurethane Biodegradable |
ISSN号 | 0021-8995 |
DOI | 10.1002/app.26039 |
英文摘要 | A series of biodegradable polyurethanes (PUs) are synthesized from the copolymer diols prepared from L-lactide and epsilon-caprolactone (CL), 2,4-toluene diisocyanate, and 1,4-butanediol. Their thermal and mechanical properties are characterized via FTIR, DSC, and tensile tests. Their T(g)s are in the range of 28-53 degrees C. They have high modulus, tensile strength, and elongation ratio at break. With increasing CL content, the PU changes from semicrystalline to completely amorphous. Thermal mechanical analysis is used to determine their shape-memory property. When they are deformed and fixed at proper temperatures, their shape-recovery is almost complete for a tensile elongation of 150% or a compression of 2-folds. By changing the content of CL and the hard-to-soft ratio, their T(g)s and their shape-recovery temperature can be adjusted. Therefore, they may find wide applications. (c) 2007 Wiley Periodicals, Inc. |
语种 | 英语 |
出版者 | WILEY-BLACKWELL |
WOS记录号 | WOS:000246128400090 |
内容类型 | 期刊论文 |
源URL | [http://ir.iccas.ac.cn/handle/121111/61515] ![]() |
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 | Wang, Wenshou,Ping, Peng,Chen, Xuesi,et al. Biodegradable polyurethane based on random copolymer of L-lactide and epsilon-caprolactone and its shape-memory property[J]. JOURNAL OF APPLIED POLYMER SCIENCE,2007,104(6):4182-4187. |
APA | Wang, Wenshou,Ping, Peng,Chen, Xuesi,&Jing, Xiabin.(2007).Biodegradable polyurethane based on random copolymer of L-lactide and epsilon-caprolactone and its shape-memory property.JOURNAL OF APPLIED POLYMER SCIENCE,104(6),4182-4187. |
MLA | Wang, Wenshou,et al."Biodegradable polyurethane based on random copolymer of L-lactide and epsilon-caprolactone and its shape-memory property".JOURNAL OF APPLIED POLYMER SCIENCE 104.6(2007):4182-4187. |
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