Shape-memory and biocompatibility properties of segmented polyurethanes based on poly(L-lactide)
文献类型：期刊论文
| 作者 | Ping Peng; Wang Wen-Shou; Zhang Pei-Biao; Chen Xue-Si; Jing Xia-Bin |
| 刊名 | CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
 |
| 出版日期 | 2007-02-10 |
| 卷号 | 28期号:2页码:371-375 |
| 关键词 | Polyurethane Poly(L-lactide) Shape Memory Biocompatibility |
| ISSN号 | 0251-0790 |
| 英文摘要 | A series of segmented poly (L-lactide)-polyurethanes (PLA-PU) were synthesized by a two-step method, with oligo-poly(L-lactide) (PLA) as the soft segments and the reaction product of 2,4-toluene diisocyanate(TDI) and ethylene glycol(EG) as the hard segments. The shape memory properties of PLA-PUs were examined. The processed PLA-PUs could recover almost 100% to their original shape within 10 degrees C from the lowest recovery temperature. In the recovery process, the PLA-PUs showed a maximum contracting stress of shape change in the range of 1.5-4 MPa depending on the PLA segmental length and the hard-segmental content and higher than that of poly (e-caprolactone polyurethane) (PCL-PU). Besides, the influence of deforming and fixing temperatures on shape memory properties of PLA-PU was studied in detail. They could affect not only the recovery temperature but also the maximum contracting stress. The experiments of cell incubation were used to evaluate the biocompatibility of PLA-PU. The results show that the biocompatibility of PLA-PU is comparable to that of the pure PLA. This kind of polyurethane can be used as implanted medical devices with a shape memory property. |
| 语种 | 英语 |
| WOS记录号 | WOS:000244413000043 |
| 出版者 | HIGHER EDUCATION PRESS |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/60795]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Jing Xia-Bin |
| 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 Wen-Shou,Zhang Pei-Biao,et al. Shape-memory and biocompatibility properties of segmented polyurethanes based on poly(L-lactide)[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2007,28(2):371-375. |
| APA | Ping Peng,Wang Wen-Shou,Zhang Pei-Biao,Chen Xue-Si,&Jing Xia-Bin.(2007).Shape-memory and biocompatibility properties of segmented polyurethanes based on poly(L-lactide).CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,28(2),371-375. |
| MLA | Ping Peng,et al."Shape-memory and biocompatibility properties of segmented polyurethanes based on poly(L-lactide)".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 28.2(2007):371-375. |
入库方式： OAI收割
来源：化学研究所
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