| 聚乙烯表面亲水化改性及其血液相容性改进 |
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| 引用本文： | 习羽,贺春丽,杨桑,朱皓森,黄小波,李利,周宁琳,章峻,沈健.聚乙烯表面亲水化改性及其血液相容性改进[J].功能材料,2011,42(8). |
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| 作者姓名： | 习羽 贺春丽 杨桑 朱皓森 黄小波 李利 周宁琳 章峻 沈健 |
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| 作者单位： | 南京师范大学化学与环境科学学院,江苏省生物功能材料重点实验室,江苏省生物医药功能材料工程研究中心,江苏南京210097 |
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| 基金项目： | 国家自然科学基金资助项目(20874047); 江苏省自然科学基金资助项目(BK2008434) |
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| 摘 要： | 以过氧化苯甲酰（BPO）为引发剂,在聚乙烯（PE）膜表面接枝丙烯酸（AA）以改善其亲水性。系统地讨论了引发剂浓度、单体浓度、反应温度以及反应时间等各影响因素对接枝率的影响,并通过傅立叶变换红外（FT-IR）、表面水接触角等物理手段来表征接枝膜的表面结构、亲水性等性能。实验结果表明BPO能成功引发丙烯酸接枝PE膜,接枝改性后PE膜亲水性有了明显的提高。采用了3种比较直观的常规评价方法对PE膜接枝改性前后的血液相容性进行初步的评价。研究结果表明表面接枝AA后的PE膜与血细胞的相互作用较弱,对血细胞的破坏程度明显减小,其抗凝血性比未接枝改性膜有显著提高。
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| 关 键 词： | 聚乙烯 亲水化改性 血液相容性 |
Surface modification of PE for improving its hydrophilicity and blood compatibility |
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| XI Yu,HE Chun-li,YANG Sang,ZHU Hao-miao,LI Li,HUANG Xiao-bo,ZHOU Ning-lin,ZHANG Jun,SHEN Jian.Surface modification of PE for improving its hydrophilicity and blood compatibility[J].Journal of Functional Materials,2011,42(8). |
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| Authors: | XI Yu HE Chun-li YANG Sang ZHU Hao-miao LI Li HUANG Xiao-bo ZHOU Ning-lin ZHANG Jun SHEN Jian |
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| Affiliation: | XI Yu,HE Chun-li,YANG Sang,ZHU Hao-miao,LI Li,HUANG Xiao-bo,ZHOU Ning-lin,ZHANG Jun,SHEN Jian(Jiangsu Key Laboratory of Biofunctional Materials,Jiangsu Engineering Research Center of Bio-medical Functional Materials,College of Chemistry and Environmental Science,Nanjing Normal University,Nanjing 210097,China) |
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| Abstract: | Acrylic acid(AA) was grafted onto the surface of polyethene(PE) films to improve their hydrophilicity and anti-clotting properties.The grafting reaction was performed using a benzoyl peroxide(BPO) initiator.Effects of such conditions as BPO concentration,monomer concentration,the optimum temperature and polymerization time on degree of grafting was systemically investigated.The structure and hydrophilicity of ungrafted films and grafted films have been characterized by FT-IR and surface water contact angle ... |
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| Keywords: | polyethene improvement of hydrophilicity blood compatibility |
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