高等学校化学学报 ›› 2015, Vol. 36 ›› Issue (1): 180.doi: 10.7503/cjcu20140774

• 高分子化学 • 上一篇    下一篇

以金属凝胶纤维为模板制备环境响应型共聚物一维纳米结构

温幸, 唐黎明(), 林晚心   

  1. 清华大学化工系, 先进材料教育部重点实验室, 北京 100084
  • 收稿日期:2014-08-25 修回日期:2014-11-25 出版日期:2015-01-10 发布日期:2014-11-25
  • 作者简介:联系人简介: 唐黎明, 男, 博士, 教授, 博士生导师, 主要从事高分子化学方面的研究. E-mail: tanglm@tsinghua.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 21174079, 20874055)和国家“九七三”计划项目(批准号: 2014CB932202)资助

Fabrication of Environmental Responsive Copolymer One-dimensional Nanostructures Using Metallogel Fibers as Template

WEN Xing, TANG Liming*(), LIN Wanxin   

  1. Key Laboratory of Advanced Materials of Ministry of Education of China, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2014-08-25 Revised:2014-11-25 Online:2015-01-10 Published:2014-11-25
  • Contact: TANG Liming E-mail:tanglm@tsinghua.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.21174079, 20874055) and the National Program on Key Basic Research Project, China(No.2014CB932202)

摘要:

分别以4-乙烯基吡啶(4VP)、 丙烯酸(AAc)和N-异丙基丙烯酰胺(NIPAM)为共聚单体, 以金属凝胶纤维为模板, 通过自由基共聚合得到了具有环境响应性的共聚物一维纳米结构. 采用红外光谱(FTIR)、 流变仪和透射电子显微镜(TEM)等表征了共聚物一维纳米结构的组成、 强度及微观形貌. 结果表明, 共聚单体与模板的配位能力强弱对所得到的共聚物一维纳米结构的产率、 强度和形貌有很重要的影响. 3种共聚物都具有相应的pH响应性和温度响应性, 并且共聚单体含量越高, 响应性越明显.

关键词: 共聚物一维纳米结构, 环境响应性, 金属凝胶, 模板合成, 4-乙烯基吡啶, 丙烯酸, N-异丙基丙烯酰胺, N, N'-亚甲基双丙烯酰胺

Abstract:

Using metallogel fibers as templates, environmental responsive copolymer one-dimensional(1D) nanostructures were fabricated via radical copolymerizing N,N'-methylene bisacrylamide(MBA) with different co-monomers, including 4-vinylpyridine(4VP), acrylic acid(AAc) and N-isopropylacrylamide(NIPAM). The compositions, strength and microscopic morphology of the copolymer 1D nanostructures were characterized by means of Fourier-transform infrared(FTIR), rheometer and transmission electron microscopy(TEM). The results indicated that the coordination ability of the co-monomers with the metallogel fibers plays an important role in the yield, strength and morphology of the corresponding copolymer 1D nanostructures. These copolymer 1D nanostructures all showed environmental responsive behavior which enhanced as the increase of molar contents of the co-monomers.

Key words: Copolymer one-dimensional nanostructures, Environmental responsibility, Metallogel, Template synthesis, 4-Vinylpyridine, Acrylic acid, N-isopropylacrylamide, N, N'-methylene bisacrylamide

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