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分别合成了端羧基三硫代酯链转移剂(CTA)和3-叠氮丙醇,并以此为反应物通过1,3-二环己基碳二亚胺/4-(二甲基氨基)吡啶催化合成得到带有叠氮端基链转移剂.采用可逆加成-断裂链转移自由基聚合(RAFT)N-异丙基丙烯酰胺(NIPAAm)得到叠氮端基聚(N-异丙基丙烯酰胺)(PNIPAAm).核磁氢谱和红外分析表明,叠氮端基CTA反应转化完全,叠氮端基在聚合反应中稳定;聚合反应可控,GPC测定的分子量与理论分子量一致,聚合物分子量分布较窄((M-)w/(M-)n<1.2).

参考文献

[1] Yezi You;Chunyan Hong;Wenping Wang;Weiqi Lu;Caiyuan Pan .Preparation and Characterization of Thermally Responsive and Biodegradable Block Copolymer Comprised of PNIPAAM and PLA by Combination of ROP and RAFT Methods[J].Macromolecules,2004(26):9761-9767.
[2] Rajesh Ranjan;William J.Brittain .Combination of Living Radical Polymerization and Click Chemistry for Surface Modification[J].Macromolecules,2007(17):6217-6223.
[3] Jean-Michel Thomassin;Sandrine Lenoir;Johan Riga .Grafting of Poly[2-(tert-butylamino)ethyl methacrylate] onto Polypropylene by Reactive Blending and Antibacterial Activity of the Copolymer[J].Biomacromolecules,2007(4):1171-1177.
[4] Sumerlin BS;Tsarevsky NV;Louche G;Lee RY;Matyjaszewski K .Highly efficient "click" functionalization of poly(3-azidopropyl methacrylate) prepared by ATRP[J].Macromolecules,2005(18):7540-7545.
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