Surface-grafted silica linked with L-lactic acid oligomer: A novel nanofiller to improve the performance of biodegradable poly(L-lactide)
文献类型：期刊论文
| 作者 | Yan, Shifeng; Yin, Jingbo; Yang, Yan; Dai, Zhengzhan; Ma, Jia; Chen, Xuesi |
| 刊名 | POLYMER
 |
| 出版日期 | 2007-03-08 |
| 卷号 | 48期号:6页码:1688-1694 |
| 关键词 | Polylactide Silica Surface Grafting |
| ISSN号 | 0032-3861 |
| DOI | 10.1016/j.polymer.2007.01.037 |
| 英文摘要 | A new surface modification method by grafting L-lactic acid oligomer onto the surface silanol groups of silica nanoparticles has been developed. The surface-grafting reaction is confirmed by IR and Si-29 MAS NMR analyses. TEM and SEM results show that grafted SiO2 (g-SiO2) nanoparticles can be comparatively uniformly dispersed in chloroform or PLLA matrix, while the unmodified SiO2 nanoparticles tend to aggregate. The loading of g-SiO2 nanoparticles in poly(L-lactide) (PLLA) matrix greatly improves the toughness and tensile strength of this material. In contrast, the incorporation of un-grafted SiO2 nanoparticles into PLLA leads to the deterioration of its mechanical properties. DSC analysis shows that g-SiO2 nanoparticles can serve as a nucleating agent for the crystallization of PLLA in the composites. SEM characterization shows the tough characteristics and great interfacial combination strength for g-SiO2 (5wt%)/PLLA nanocomposites. (c) 2007 Elsevier Ltd. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000245257300032 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/61357]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yin, Jingbo |
| 作者单位 | 1.Shanghai Univ, Sch Mat Sci & Engn, Dept Polymer Mat, Shanghai 201800, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan, Shifeng,Yin, Jingbo,Yang, Yan,et al. Surface-grafted silica linked with L-lactic acid oligomer: A novel nanofiller to improve the performance of biodegradable poly(L-lactide)[J]. POLYMER,2007,48(6):1688-1694. |
| APA | Yan, Shifeng,Yin, Jingbo,Yang, Yan,Dai, Zhengzhan,Ma, Jia,&Chen, Xuesi.(2007).Surface-grafted silica linked with L-lactic acid oligomer: A novel nanofiller to improve the performance of biodegradable poly(L-lactide).POLYMER,48(6),1688-1694. |
| MLA | Yan, Shifeng,et al."Surface-grafted silica linked with L-lactic acid oligomer: A novel nanofiller to improve the performance of biodegradable poly(L-lactide)".POLYMER 48.6(2007):1688-1694. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。