Mechanical and thermal properties of polypeptide modified hydroxyapatite/poly(L-lactide) nanocomposites
文献类型：期刊论文
| 作者 | Wei JC ; Dai YF ; Chen YW ; Chen XS |
| 刊名 | science china-chemistry
 |
| 出版日期 | 2011 |
| 卷号 | 54期号:3页码:431-437 |
| 关键词 | L-LACTIDE HYDROXYAPATITE NANOPARTICLES CLINICAL-APPLICATION COMPOSITE SURFACE POLYLACTIDE SCAFFOLDS POLYMERIZATION MINERALIZATION ADHESION |
| ISSN号 | 1674-7291 |
| 通讯作者 | chen xs |
| 中文摘要 | a new type of polypeptide (poly(gamma-benzyl-l-glutamate) (pblg)) modified hydroxyapatite (ha)/poly(l-lactide) (plla) nanocomposites (pblg-g-ha/plla) were prepared by the solvent-mixing method, and their mechanical and thermal properties were investigated. the tensile test showed that the mechanical properties of pblg-g-ha/plla nanocomposites were better than that of plla, even a 0.3 wt% content of pblg-g-ha in the nanocomposites could make the tensile strength 12% higher than that of the neat plla sample, and the tensile modulus was about 17% higher than that of the plla sample. the thermal gravimetric analysis (tga) showed that the pblg-g-ha/plla composites have better thermal stability than the plla sample. the differential scanning calorimetry (dsc) was used to characterize the effect of pblg-g-ha on the crystallization of plla. the isothermal crystallization behavior showed that the half crystallization time (t (1/2)) of pblg-g-ha/plla was much shorter than that of the plla sample. when the pblg-g-ha content was 10%, t (1/2) was only 18.7 min, while t (1/2) of the plla sample was 61.4 min. the results showed that the pblg-g-ha worked as a nucleating agent and enhanced the crystallization speed of plla. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000288173200003 |
| 公开日期 | 2012-06-11 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/44790]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wei JC,Dai YF,Chen YW,et al. Mechanical and thermal properties of polypeptide modified hydroxyapatite/poly(L-lactide) nanocomposites[J]. science china-chemistry,2011,54(3):431-437. |
| APA | Wei JC,Dai YF,Chen YW,&Chen XS.(2011).Mechanical and thermal properties of polypeptide modified hydroxyapatite/poly(L-lactide) nanocomposites.science china-chemistry,54(3),431-437. |
| MLA | Wei JC,et al."Mechanical and thermal properties of polypeptide modified hydroxyapatite/poly(L-lactide) nanocomposites".science china-chemistry 54.3(2011):431-437. |
入库方式： OAI收割
来源：长春应用化学研究所
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