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材料研究学报  2008, Vol. 22 Issue (2): 215-219    
  论文 本期目录 | 过刊浏览 |
羧化左旋聚乳酸膜的表面性能
田冶;周长忍;曾庆慧;田金环
暨南大学材料科学与工程系
引用本文:

田冶; 周长忍; 曾庆慧; 田金环 . 羧化左旋聚乳酸膜的表面性能[J]. 材料研究学报, 2008, 22(2): 215-219.

全文: PDF(934 KB)  
摘要: 用低温等离子体接枝聚合丙烯酸获得表面羧基化的PLLA膜并对其表面性能进行表征. 结果表明, 等离子体处理条件对膜表面羧基接枝密度有较大影响; 与空白PLLA膜相比, 羧基化后膜的亲水性得到显著提高, 表面接触角由75°减少到24° 并长时间保持稳定; L929成纤维细胞在羧化膜上的生长状态良好, 呈现出细胞的聚集态, 其细胞密度大于空白组. 材料表面的羧基化能改善其亲水性并使其带上负电荷, 从而有效的促进细胞的黏附和生长.
关键词 材料表面与界面低温等离子体羧基化    
Key words
收稿日期: 2007-05-30     
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