中华医学超声杂志

应用化学 ›› 1996, Vol. 0 ›› Issue (1): 1-5.

• 研究论文 •    下一篇

水溶性聚合物和两亲聚合物18.2-丙烯酰胺基烷磺酸类两亲单体

张从云1, 方天如1, 裘令玮1, 王佛松1, 刘沛妍2   

  1. 1. 中国科学院长春应用化学研究所 长春 130022;
    2. 东北师范大学化学系 长春
  • 收稿日期:1995-06-07 修回日期:1995-08-24 出版日期:1996-02-10 发布日期:1996-02-10
  • 基金资助:
    中国科学院“八五”重点基础性研究资助

Water-Soluble and Amphiphilic Polymers 18. Amphiphilic Monomers of 2-Acrylamidoalkanesulfonic Acids

Zhang Congyun1, Fang Tianru1, Qiu Lingwei1, Wang Fusong1, Liu Peiyan2   

  1. 1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022;
    2. Department of Chemistry, The Northeast Normal University, Changchun
  • Received:1995-06-07 Revised:1995-08-24 Published:1996-02-10 Online:1996-02-10

PDF

493

被引次数

6 | 2

摘要： 2-丙烯酰胺基烷磺酸的溶解行为和胶体化学性质明显随烷基长短而异。由于手性碳原子的存在,与其相邻亚甲基的质子峰在1H NMR谱上清楚地发生分裂。研究了2-丙烯酰胺基十六烷磺酸(AMC16S)在水/二氧六环混合溶剂中的聚合动力学和胶体化学性质。发现聚合速度和所得聚合物分子量均在水/二氧六环体积比为1～1/2时出现最小值,临界胶束浓度随混合溶剂中二氧六环含量的增加而增加,当水/二氧六环体积比为1/2～1/4时,观察不到胶束化现象。

关键词: 两亲单体, 丙烯酰胺基烷磺酸, 溶解性, 临界胶束浓度, 核磁共振, 聚合特性

Abstract: The solubility and colloidal properties of 2-acrylamidoalkanesulfonic acids were found to vary markedly with the alkyl length.Due to the existence of a chiral carbon,the peaks of methylene protons adjacent to it clearly split on the 1H NMR spectra.The polymerization kinetics and colloidal properties of 2-acrylamidohexadecane sulfonic acid in water/dioxane mixed solvents were investigated.It is found that both the polymerization rate and the relative molecular mass of the resultant polymer have a minimum value when water/dioxane volume ratio is in the range of 1～1/2.The critical micelle concentration increases with the content of dioxane in the mixed solvent, and no apparent micelle formation is observed when water/dioxane volume ratio is 1/2～1/4.

Key words: amphiphilic monomer, acrylamidoalkanesulfonic acid, solubility, critical micelle concentration, NMR, polymerization characteristics

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