From seleno-mediated radical polymerization to seleno-containing branched polymers and dynamic hydrogel

From seleno-mediated radical polymerization to seleno-containing branched polymers and dynamic hydrogel
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从硒介导的自由基聚合到含硒支化聚合物和动态水凝胶

DOI:
10.1039/c6ra28565a
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发表时间:
2017-01
期刊:
影响因子:
3.9
通讯作者:
Zhu Xiulin
Zhu Xiulin
中科院分区:
化学3区
文献类型:
--
作者:
Lu Weihong;An Xiaowei;Zhu Jian;Zhou Nianchen;Zhang Zhengbiao;Pan Xiangqiang;Zhu Xiulin

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基于二硒碳酸酯介导的RDRP新方法,合成了二硒碳酸酯封端的超支化共聚物和含二硒醚的动态水凝胶。O-(4-甲氧基苯基)Se-(4-乙烯基苄基)碳二烯酸酯与苯乙烯、丙烯酸甲酯、丙烯酸正丁酯、甲基丙烯酸甲酯和N-异丙基丙烯酰胺等乙烯基单体共聚,得到了不同分支长度和支化度的超支化共聚物。以超支化PNIPAM为原料,通过氨解和自发氧化反应,合成了动态二硒醚水凝胶。该水凝胶显示氧化还原和温度响应。
Diselenocarbonate-end capped hyperbranched copolymers and diselenide containing dynamic hydrogel were synthesized on the basis of a new RDRP methodology mediated by diselenocarbonates. Copolymerization of O-(4-methoxyphenyl)Se-(4-vinylbenzyl)carbonodiselenoate with vinyl monomers such as styrene, methyl acrylate, n-butyl acrylate, methyl methacrylate, and N-isopropylacrylamide afforded hyperbranched copolymers with variable branch length and degree of branching. A dynamic diselenide containing hydrogel was obtained from a hyperbranched PNIPAM via aminolysis and spontaneous oxidation reaction. This hydrogel showed redox and temperature responses.
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