| 交联明胶与聚异丙基丙烯酰胺接枝共聚物的研究 |
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| 引用本文： | 吉静.交联明胶与聚异丙基丙烯酰胺接枝共聚物的研究[J].北京化工大学学报(自然科学版),2005,32(5):57-59. |
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| 作者姓名： | 吉静 |
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| 作者单位： | 北京化工大学材料科学与工程学院,北京,100029 |
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| 摘 要： | 采用接枝共聚合制备交联明胶与聚异丙基丙烯酰胺（Gelx-PNIPAM）接枝共聚物。研究了引发体系、反应时间、反应温度、异丙基丙烯酰胺（NIPAM）单体用量、引发剂用量以及加料方式等因素对接枝率（YPG）的影响。结果表明：YPG随反应温度、反应时间、单体浓度以及引发剂浓度的增加而达到最大值后，再降低。将交联的明胶颗粒放入去离子水中溶胀24h，滴加引发剂后，再滴加NIPAM溶液的加料方式有利于提高接枝率。接枝聚合物的两相微观结构比其共混物更均匀。
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| 关 键 词： | 明胶 N-异丙基丙烯酰胺 接枝共聚 接枝率 |
| 收稿时间： | 2004-12-20 |
| 修稿时间： | 2004年12月20日 |
Preparation of Gelx-graft-PNIPAM copolymer |
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| JI Jing.Preparation of Gelx-graft-PNIPAM copolymer[J].Journal of Beijing University of Chemical Technology,2005,32(5):57-59. |
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| Authors: | JI Jing |
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| Institution: | College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
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| Abstract: | Copolymers of Gelx-graft-PNIPAM was synthesized by radical copolymerization.The influence of the reaction factors such as temperature,reaction time,order of the monomer added,concentration of the initiator and ratio of the monomer to the percentage of grafting(Y_(PG)) of the copolymers were studied.The result indicates that Y_(PG) shows an mono-curve with the increase in the reaction factors mentioned above.The grafted samples were characterized by IR and TEM.The results show that the grafted polymer has a more uniform microstructure than that a blend polymer. |
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| Keywords: | gelatin N-isopropylacrylamid graft copolymerization percentage of grafting |
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