| 聚丙烯酰胺/聚异丙基丙烯酰胺互穿网络水凝胶的制备与性能 |
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| 引用本文： | 李志军,陈捷,杨黎明,王涛,王胜,孙婕. 聚丙烯酰胺/聚异丙基丙烯酰胺互穿网络水凝胶的制备与性能[J]. 化学研究, 2005, 16(4): 6-9 |
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| 作者姓名： | 李志军 陈捷 杨黎明 王涛 王胜 孙婕 |
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| 作者单位： | 上海大学,环境与化学工程学院应用化学系,上海,201800;上海大学,环境与化学工程学院应用化学系,上海,201800;上海大学,环境与化学工程学院应用化学系,上海,201800;上海大学,环境与化学工程学院应用化学系,上海,201800;上海大学,环境与化学工程学院应用化学系,上海,201800;上海大学,环境与化学工程学院应用化学系,上海,201800 |
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| 基金项目： | Supported by Committee of Shanghai Science and Technology（02DJ14030）. |
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| 摘 要： | 采用分步法用电子加速器辐射合成了聚丙烯酰胺(PAAm)/聚异丙基丙烯酰胺(PNIPAAm)互穿网络水凝胶,并考察了温度、pH值、离子强度对其溶胀性能的影响.研究表明:互穿水凝胶具有温度敏感性,且其体积相变与互穿网络中PAAm和PNIPAAm含量有关,随着网络中PAAm含量的增加水凝胶的体积相变趋于平缓,可以通过改变PAAm和PNIPAAm的组成比来控制水凝胶的体积相变行为.此外,互穿水凝胶还具有pH敏感性和一定的抗盐性.
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| 关 键 词： | 聚异丙基丙烯酰胺 聚丙烯酰胺 电子束 水凝胶 温度敏感性 pH敏感性 |
| 文章编号： | 1008-1011（2005）04-0006-04 |
| 收稿时间： | 2005-06-24 |
| 修稿时间： | 2005-06-24 |
Synthesis and Characteristics of Interpenetrating Network Hydrogels of Poly (acrylamide) /Poly-(N-isopropylacrylamide) |
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| LI Zhi-jun,CHEN Jie,YANG Li-ming,WANG Tao,WANG Sheng,SUN Jie. Synthesis and Characteristics of Interpenetrating Network Hydrogels of Poly (acrylamide) /Poly-(N-isopropylacrylamide)[J]. Chemical Research, 2005, 16(4): 6-9 |
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| Authors: | LI Zhi-jun CHEN Jie YANG Li-ming WANG Tao WANG Sheng SUN Jie |
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| Abstract: | Interpenetrating polymer network(IPN) hydrogels composed of poly(N-isopropylacrylamide)(PNIPAAm) and poly(acrylamide)(PAAm) were synthesized by sequential IPN method using electron beam.The equilibrium swelling ratios of the hydrogels were investigated under conditions of different pH,temperature and ionic strength.It appeared that the IPN hydrogels exhibited temperature sensitivity,but the phase transition of the IPN hydrogels was not obvious with the increase of acrylamide content,and the phase transition could be controlled by the ratio of PNIPAAm to PAAm.The experimental results also showed that the IPN hydrogels are pH-sensitive,and the IPN hydrogels have the properties of salt resistance compared with pure PNIPAAm hydrogel. |
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| Keywords: | poly (N-isopropylacrylamide) poly (acrylamide ) electron beam hydrogel temperature sensitivity pH sensitivity |
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