高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (1): 144.

• 论文 • 上一篇    下一篇

聚(N,N-二甲基苯胺)的质子化研究

张瑞丰, 郑海鹏, 沈家骢   

  1. 吉林大学化学系、超分子结构与谱学开放实验室, 长春, 130023
  • 收稿日期:1996-09-06 出版日期:1998-01-24 发布日期:1998-01-24
  • 通讯作者: 张瑞丰,男,29岁,博士,讲师.
  • 作者简介:张瑞丰,男,29岁,博士,讲师.
  • 基金资助:

    国家教育委员会留学回国人员基金资助课题.

Studies on Protonation of Poly(N,N-dimethylaniline)

ZHANG Rui-Feng, ZHENG Hai-Peng, SHEN Jia-Cong   

  1. Key Lab of Supramolecular Structure and Spectroscopy, Department of Chemistry, Jilin University, Changchun, 130023
  • Received:1996-09-06 Online:1998-01-24 Published:1998-01-24

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被引次数

5

摘要： 研究了聚(N,N-二甲基苯胺)在硫酸和三氯醋酸水溶液中的质子化行为,对其吸收光谱和核磁共振谱的研究发现,聚(N,N-二甲基苯胺)在不同酸度下存在两种质子化状态:在强酸体系中质子加在侧基氮原子上,在中等酸性体系中质子加在主链的苯环上.

关键词: 聚(N, N-二甲基苯胺), 酸性介质, 质子化状态

Abstract: In this paper, we studied the protonation of poly(N,N-dimethylaniline) (PDMA)in two different acid media (sulfuric acid and trichloroacetic acid). Using UV-Vis and 1H NMR measurements, we found that PDMA could present two types of protonated states,which depends on the acidity. It can be concluded that protons were added on nitrogen atoms of substituent in the concentrated acid but on benzene ring of main chain in the moderate acid solution.

Key words: Poly (N, N-dimethylaniline), Acid media, Protonated states

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