| 星型共聚物PEO_3-b-PDMAEMA_3的pH敏感和温敏性研究 |
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| 引用本文： | 吴磊,王玉东,赵清香,付鹏,张俊乐,刘民英. 星型共聚物PEO_3-b-PDMAEMA_3的pH敏感和温敏性研究[J]. 高分子通报, 2010, 0(3) |
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| 作者姓名： | 吴磊 王玉东 赵清香 付鹏 张俊乐 刘民英 |
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| 作者单位： | 郑州大学,材料科学与工程学院,郑州,450052 |
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| 摘 要： | 本课题组结合阴离子开环聚合技术和原子转移自由基聚合技术,以环氧乙烷(EO)和甲基丙烯酸[2-(二甲基氨基)乙基]酯(DMAEMA)为单体,合成了分子量可控、分子量分布窄的星型嵌段共聚物PEO3-b-PDMAEMA3。基于PEO的亲水性和PDMAEMA的温敏和pH敏感性,我们用荧光光谱仪、动态激光散射仪等比较研究了该系列星型嵌段共聚物在水溶液中的温敏及pH敏行为,证明其具有温敏和pH敏感性,而且其临界胶束化pH值要小于相应的线型嵌段共聚物的临界胶束化pH值。
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| 关 键 词： | 星型聚合物 pH敏感性 温度敏感性 |
Studies on pH- and Temperature-Sensitive Star-Shaped Block Copolymer PEO_3-b-PDMAEMA_3 |
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| WU Lei,WANG Yu-dong,ZHAO Qing-xiang,FU Peng,ZHANG Jun-le,LIU Min-ying. Studies on pH- and Temperature-Sensitive Star-Shaped Block Copolymer PEO_3-b-PDMAEMA_3[J]. Polymer Bulletin, 2010, 0(3) |
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| Authors: | WU Lei WANG Yu-dong ZHAO Qing-xiang FU Peng ZHANG Jun-le LIU Min-ying |
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| Affiliation: | School of Materials Science and Engineering;Zhengzhou University;Zhengzhou 450052;China |
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| Abstract: | A series of three-arm star-shaped copolymers PEO_3-b-PDMAEMA_3 were synthesized by a conation of AROP and ATRP by our laboratory.The PEO is hydrophilic and PDMAEMA is pH-and temperature-sensitive.The behavior of pH-and temperature-sensitive of the copolymers was studied in aqueous solution by fluorescence and dynamic light scattering(DLS).The results proved that star-shaped copolymers were pH-and temperature-sensitive.Also,we measured the critical micellization pH values of the starshaped copolymers and the... |
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| Keywords: | Star-shaped polymer pH-Sensitive Temperature-sensitive |
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