| 一种温敏萃取凝胶 |
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| 引用本文： | 廖叶华,董汝秀,范正.一种温敏萃取凝胶[J].高分子学报,1993,0(6):672-677. |
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| 作者姓名： | 廖叶华 董汝秀 范正 |
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| 作者单位： | 北京化工学院高分子系，北京化工学院高分子系，中国科学院化工冶金研究所 北京，邮政编码:100029 化学工业出版社工作，北京，邮政编码:100029，北京，邮政编码:100080 |
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| 摘 要： | 本工作合成了一种温敏萃取凝胶,即N-异丙基丙烯酰胺与甲基丙烯酸钠的共聚物凝胶。分别考察了在合成凝胶时,离子剂用量和交联剂用量对凝胶溶胀性能的影响。还考察了在不同溶剂中和在酸、碱、盐存在下凝胶的溶胀情况,以及凝胶的再生性能。此种新温敏凝胶,于室温下在水中的溶胀比明显高于文献中报道的其他温敏凝胶,而且其再生性能良好,在水中溶胀皱缩反复到第10次时,其吸水性能无什么变化。
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| 关 键 词： | N-异丙基丙烯酰胺 甲基丙烯酸钠 温敏凝胶 萃取凝胶 |
| 收稿时间： | 1991-09-04 |
A TEMPERATURE SENSITIVE GEL AS EXTRACTION AGENT |
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| LIAO Ye-hua,DONG Ru-xiu,FAN Zheng.A TEMPERATURE SENSITIVE GEL AS EXTRACTION AGENT[J].Acta Polymerica Sinica,1993,0(6):672-677. |
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| Authors: | LIAO Ye-hua DONG Ru-xiu FAN Zheng |
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| Institution: | Department of Polymer Chemistry; Beijing Institute of Chemical Technology; Beijing; Post code: 100029; Institute of Chemical Technology and Metallurgy; Chinese Academy of Scienc; Post code: 100080 |
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| Abstract: | A temperature sensitive gel as extraction agent which is a copolymer of N-isopropy-lacrylamide (NIPA) with sodium methacrylate has been synthesized. The influence of amounts of ionic agent and crosslinking agent on the swelling property of the gel have been investigated. We also inspected the swelling behaviour of the gel in different solvents and at the presentee of acid, alkali and salt. The swelling ratio of this new temperature sensitive gel at room temperature in water is obviously greater than those which are reported, and its recovery property is good. Its absorptivity of water is almost not changed even after the tenth swelling-shrink cycle. |
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| Keywords: | N-isopropylacrylamide Sodium methacrylate Temperature sensitive gel Extraction gel |
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