| 聚乙烯醇/丙烯酸共聚物水凝胶的制备及溶胀性 |
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| 引用本文： | 周智敏,周享春. 聚乙烯醇/丙烯酸共聚物水凝胶的制备及溶胀性[J]. 化学研究, 2006, 17(4): 63-65 |
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| 作者姓名： | 周智敏 周享春 |
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| 作者单位： | 湖北长江大学,化学与环境工程学院,湖北,荆州,434020;湖北长江大学,化学与环境工程学院,湖北,荆州,434020 |
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| 摘 要： | 制备了具有pH敏感性的聚乙烯醇(PVA)/丙烯酸(AA)共聚物水凝胶,研究了PVA与AA之间配比、交联剂、引发剂用量对凝胶转化率的影响,对水凝胶的溶胀行为和pH敏感性也进行了详细研究.实验表明PVA与AA的质量比为(1∶9)~(3∶7)之间时,引发剂和交联剂分别为PVA和AA总量的0.2%和0.3%时,凝胶转化率高.随着水溶液pH值从3增加到9,凝胶的溶胀比也相应的增加,表现出明显的pH敏感性.
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| 关 键 词： | 聚乙烯醇 丙烯酸 水凝胶 pH敏感性 |
| 文章编号： | 1008-1011（2006）04-0063-03 |
| 收稿时间： | 2006-08-01 |
| 修稿时间： | 2006-08-01 |
Preparation and Swelling Behavior of PVA/AA Copolymeric Hydrogel |
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| ZHOU Zhi-min,ZHOU Xiang-chun. Preparation and Swelling Behavior of PVA/AA Copolymeric Hydrogel[J]. Chemical Research, 2006, 17(4): 63-65 |
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| Authors: | ZHOU Zhi-min ZHOU Xiang-chun |
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| Abstract: | A copolymer hydrodel of polyvinyl alcohol(PVA)/polyacrylic acid(AA) was prepared.The effects of content of initiator and crosslinking agents on conversion were studied.The swelling behavior and pH sensitivity of the hydrogel were studied in detail.With the increase in pH of the aqueous solution from 3 to 9,the swelling ratio of the hydrogel increased accordingly.The effects of weight ratio of PVA∶AA and crosslinker content on the swelling behavior was discussed. |
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| Keywords: | poly(vinyl alcohol) acrylic acid hydrogel pH sensitivity |
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