| 丙烯酸改性聚醚砜中空纤维渗透汽化膜的研究 |
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| 引用本文： | 杨虎,许振良,平郑骅,周立志. 丙烯酸改性聚醚砜中空纤维渗透汽化膜的研究[J]. 功能高分子学报, 2005, 18(1): 84-88 |
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| 作者姓名： | 杨虎 许振良 平郑骅 周立志 |
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| 作者单位： | 华东理工大学化学工程研究所,上海,200237;复旦大学高分子科学系,教育部聚合物分子工程重点实验室,上海,200433 |
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| 基金项目： | 教育部聚合物分子工程重点实验室基金，国家973重点基础研究发展计划资助项目(No2003CB6257005) |
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| 摘 要： | 采用自由基聚合反应制备了丙烯酸接枝改性的聚醚砜中空纤维渗透汽化膜，该膜用于醇／水分离获得了良好的效果。结果表明，通过改变聚合单体的浓度可以控制膜的接枝率，并调节膜的选择性和通量。改性膜的红外光谱和电镜分析结果表明：膜的接枝反应主要发生在中空纤维膜的内表面，膜的外表面接枝程度很低。力学性能测试表明接枝后膜的拉伸强度减弱。
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| 关 键 词： | 接枝 丙烯酸 中空纤维 渗透汽化 |
| 文章编号： | 1008-9357(2005)01-0084-05 |
| 修稿时间： | 2004-08-30 |
Study on Acrylic Acid Modified Polyethersulfone Hollow Fiber Pervaporation Membrane with Thermal Polymerization |
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| YANG Hu,XU Zhen-liang,PING Zheng-hua,ZHOU Li-zhi. Study on Acrylic Acid Modified Polyethersulfone Hollow Fiber Pervaporation Membrane with Thermal Polymerization[J]. Journal of Functional Polymers, 2005, 18(1): 84-88 |
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| Authors: | YANG Hu XU Zhen-liang PING Zheng-hua ZHOU Li-zhi |
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| Affiliation: | YANG Hu~1,XU Zhen-liang~1,PING Zheng-hua~2,ZHOU Li-zhi~2 |
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| Abstract: | Polyethersulfone (PES) hollow fibers grafted with acrylic acid for pervaporation application were prepared by free radical polymerization. They showed a good water selectivity for ethanol-water separation. The gravimetric analysis pointed that the grafting degree of hollow fiber increases with acrylic acid concentration, which further influenced the selectivity and flux of hollow fiber. IR-ATR and SEM study revealed that the grafting mainly happened on the internal surface of PES hollow fiber, the amount of the grafted acrylic acid on its external surface is relatively lower. Mechanical property measurement showed that modified hollow fibers have lower tensile strength than unmodified sample. |
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| Keywords: | grafting acrylic acid hollow fiber pervaporation |
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