Facile one‐pot/one‐step technique for preparation of side‐chain functionalized polymers: Combination of SET‐RAFT polymerization of azide vinyl monomer and click chemistry
Facile one‐pot/one‐step technique for preparation of side‐chain functionalized polymers: Combination of SET‐RAFT polymerization of azide vinyl monomer and click chemistry
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DOI：
10.1002/pola.25868
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发表时间：
2012-03
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通讯作者：
Q. Shen;J. Zhang;Shuangshuang Zhang;Yi Hao;Wei Zhang-;Weidong Zhang;Gaojian Chen;Zhengbiao Zhang;Xiu-lin Zhu
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文献类型：
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作者：
Q. Shen;J. Zhang;Shuangshuang Zhang;Yi Hao;Wei Zhang-;Weidong Zhang;Gaojian Chen;Zhengbiao Zhang;Xiu-lin Zhu
通过可逆加成-断裂链转移（SET-RAFT）方法，通过室温单电子转移引发和传播，成功聚合了含叠氮基功能单体甲基丙烯酸11-叠氮基十一烷酯。聚合行为具有“活性”/可控自由基聚合特征。动力学曲线为一级动力学曲线，聚合物的分子量随单体转化率的增加而线性增加，同时保持较窄的分子量分布（Mw/Mn≤ 1.22）。通过1H NMR和FTIR分析证实所得聚合物的叠氮基完全保留。通过用甲基丙烯酸甲酯扩链以产生二嵌段共聚物来确认链官能度的保留。此外，侧链官能化聚合物可以通过一锅/一步技术制备，该技术是SET‐RAFT和“点击化学”方法的组合。© 2011 Wiley Periodicals，Inc. J Polym Sci Part A：Polym Chem，2012
An azido‐containing functional monomer, 11‐azido‐undecanoyl methacrylate, was successfully polymerized via ambient temperature single electron transfer initiation and propagation through the reversible addition–fragmentation chain transfer (SET‐RAFT) method. The polymerization behavior possessed the characteristics of “living”/controlled radical polymerization. The kinetic plot was first order, and the molecular weight of the polymer increased linearly with the monomer conversion while keeping the relatively narrow molecular weight distribution (Mw/Mn≤ 1.22). The complete retention of azido group of the resulting polymer was confirmed by1H NMR and FTIR analysis. Retention of chain functionality was confirmed by chain extension with methyl methacrylate to yield a diblock copolymer. Furthermore, the side‐chain functionalized polymer could be prepared by one‐pot/one‐step technique, which is combination of SET‐RAFT and “click chemistry” methods. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012