| 表面接枝不同分子量聚乙二醇的聚氨酯材料的抗粘附性能研究 |
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| 引用本文： | 许德秋,关雅元,刘 畅,蒋雨辰,张吉亚,罗建斌.表面接枝不同分子量聚乙二醇的聚氨酯材料的抗粘附性能研究[J].西南民族大学学报(自然科学版),2016,42(6):646-653. |
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| 作者姓名： | 许德秋 关雅元 刘 畅 蒋雨辰 张吉亚 罗建斌 |
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| 作者单位： | 西南民族大学化学与环境保护工程学院,西南民族大学化学与环境保护工程学院,西南民族大学化学与环境保护工程学院,西南民族大学化学与环境保护工程学院,西南民族大学化学与环境保护工程学院,西南民族大学化学与环境保护工程学院 |
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| 摘 要： | 通过利用聚多巴胺与氨基基团的共价反应,将不同分子量的氨基聚乙二醇单甲醚(mPEG-NH_2)固定于聚氨酯(PU)材料表面,并系统地研究了不同分子量聚乙二醇修饰的聚氨酯材料表面的抗粘附性能.实验中采用了三种不同分子量的氨基聚乙二醇单甲醚,分别是分子量1 000、2 000和5 000.对修饰后的材料表面进行的X射线光电子能谱测试及静态接触角测试证实了不同分子量的聚乙二醇成功地接枝于聚氨酯材料表面.通过对材料表面在不同时间段抗金黄色葡萄球菌粘附效果的分析,以及抗血小板粘附测试,系统地探讨了聚乙二醇分子量的不同对所修饰材料表面抗粘附效果的影响.并针对由分子量2 000与5 000的聚乙二醇修饰的材料表面进行了抗细菌生物膜测试.
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| 关 键 词： | 聚乙二醇 抗粘附 聚多巴胺 聚氨酯 |
| 收稿时间： | 2016/8/27 0:00:00 |
| 修稿时间： | 2016/11/9 0:00:00 |
Antifouling properties of polyurethane surface modified with different molecular weight of poly(ethylene glycol) |
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| XU Deqiu,GUAN Yayuan,LIU Chang,JIANG Yuchen,ZHANG Jiya and LUO Jianbin.Antifouling properties of polyurethane surface modified with different molecular weight of poly(ethylene glycol)[J].Journal of Southwest University for Nationalities(Natural Science Edition),2016,42(6):646-653. |
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| Authors: | XU Deqiu GUAN Yayuan LIU Chang JIANG Yuchen ZHANG Jiya and LUO Jianbin |
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| Institution: | School of Chemistry and Environmental Protection Engineering,Southwest University for Nationalities,School of Chemistry and Environmental Protection Engineering,Southwest University for Nationalities,School of Chemistry and Environmental Protection Engineering,Southwest University for Nationalities,School of Chemistry and Environmental Protection Engineering,Southwest University for Nationalities,School of Chemistry and Environmental Protection Engineering,Southwest University for Nationalities,School of Chemistry and Environmental Protection Engineering,Southwest University for Nationalities |
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| Abstract: | This paper presents a comparative study on the antifouling properties of methoxy poly(ethylene glycol) (mPEG)-based polymer coatings prepared by the active catechol and amine groups of the polydopamine (PDA). Three types of mPEG-NH2 polymer with different molecular weight were immobilized on a PDA coated polyurethane (PU) substrate, and their molecular weight were 1000, 2000 and 5000, respectively. The chemical composition and wettability of the polymer brushes were characterized by X-ray photoelectron spectroscopy (XPS) and static water contact angle measurements. The dependence of antifouling performance on mPEG molecular weight was systemically tested and compared by bacterial adhesion assays at different time periods and blood platelet adhesion assays. |
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| Keywords: | poly(ethylene glycol) antifouling polydopamine polyurethane |
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