Nanocomposites of poly(L-lactide) and surface-modified chitin whiskers with improved mechanical properties and cytocompatibility
文献类型：期刊论文
| 作者 | Li, Cairong; Liu, Hua; Luo, Binghong; Wen, Wei; He, Liumin; Liu, Mingxian; Zhou, Changren |
| 刊名 | EUROPEAN POLYMER JOURNAL
 |
| 出版日期 | 2016 |
| 英文摘要 | Rod-like chitin whiskers (CHWs) were prepared by acid hydrolysis and then surfacemodified with L-lactide to obtain grafted CHWs (g-CHWs). The structures, morphologies and properties of the CHWs and g-CHWs were studied by FTIR, solid state 13C NMR, TG,XRD, FESEM and TEM. Subsequently, CHWs and g-CHWs were used as reinforcing agents for a poly(L-lactide) (PLLA) matrix to fabricate CHW/PLLA and g-CHW/PLLA nanocomposites via solution casting. The resulting nanocomposites were fully characterized in terms of crystallization behavior, thermal transitions, morphology, mechanical properties and cytocompatibility. The nucleating effect of the CHWs and g-CHWs was confirmed by POM and DSC analysis, and as a result, the degree of crystallinity of PLLA in the CHW/PLLA and g-CHW/PLLA nanocomposites was higher than that of neat PLLA. FESEM and TEM observations indicated that g-CHWs were better dispersed throughout the matrix than CHWs due to the surface-modifications of the whiskers. Correspondingly, using an optimized g-CHW content of 5 wt%, the tensile strength, tensile modulus and fracture energy of g-CHW/PLLA nanocomposites were found to be 30.5 MPa, 1.4 GPa and 333.7 J/m2, respectively, values that were significantly superior to those of the CHW/PLLA nanocomposites and neat PLLA. Cell culture results revealed that the g-CHW/PLLA nanocomposites were more suitable for cell adhesion and differentiation than those of the neat PLLA and CHW/PLLA nanocomposites. |
| 收录类别 | SCI |
| 原文出处 | http://www.sciencedirect.com/science/article/pii/S0014305716305754 |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/10514]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | EUROPEAN POLYMER JOURNAL |
| 推荐引用方式 GB/T 7714 | Li, Cairong,Liu, Hua,Luo, Binghong,et al. Nanocomposites of poly(L-lactide) and surface-modified chitin whiskers with improved mechanical properties and cytocompatibility[J]. EUROPEAN POLYMER JOURNAL,2016. |
| APA | Li, Cairong.,Liu, Hua.,Luo, Binghong.,Wen, Wei.,He, Liumin.,...&Zhou, Changren.(2016).Nanocomposites of poly(L-lactide) and surface-modified chitin whiskers with improved mechanical properties and cytocompatibility.EUROPEAN POLYMER JOURNAL. |
| MLA | Li, Cairong,et al."Nanocomposites of poly(L-lactide) and surface-modified chitin whiskers with improved mechanical properties and cytocompatibility".EUROPEAN POLYMER JOURNAL (2016). |
入库方式： OAI收割
来源：深圳先进技术研究院
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