表面接枝PHAMA对硅橡胶亲水性能的影响 |
Effect of Surface Grafted PHAMA on Hydrophilic Property of Silicone Rubber |
投稿时间:2018-08-08 修订日期:2018-08-08 |
DOI:10.12136/j.issn.1000-890X.2019.06.0418 |
中文关键词: 甲基乙烯基硅橡胶 透明质酸 接枝改性 紫外光辐照 亲水性 |
英文关键词: methyl vinyl silicone rubber hyaluronic acid graft modification ultraviolet radiation hydrophilicity |
基金项目:国家科技重大专项(2017YFC1104304) |
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中文摘要: |
将透明质酸钠盐与甲基丙烯酸酐在40 ℃下反应6 h,合成透明质酸甲基丙烯酸酯(HAMA),再通过紫外光辐照接枝反应将聚HAMA(PHAMA)接枝到甲基乙烯基硅橡胶表面。傅里叶红外光谱、扫描电子显微镜和热重分析均表明PHAMA接枝成功,PHAMA接枝硅橡胶的表面接触角由硅橡胶的107.5°减小到68.7°,亲水性得到改善。 |
英文摘要: |
Hyaluronic acid methacrylate(HAMA)was synthesized by the reaction of hyaluronic acid sodium salt with methacrylic anhydride at 40 ℃ for 6 h,and then PHAMA was grafted onto the surface of methyl vinyl silicone rubber using ultraviolet radiation.Fourier infrared spectroscopy,scanning electron microscopy and thermogravimetric analysis showed that PHAMA was successfully grafted onto the silicone rubber surface.The surface contact angle of PHAMA grafted silicone rubber decreased from 107.5° to 68.7°,indicating that the hydrophilicity was improved. |
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