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  

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

作　　者：张从云[1] 方天如[1] 裘令玮 王佛松[1] 刘沛妍[1] 

机构地区：[1]中国科学院长春应用化学研究所,东北师范大学化学系

出　　处：《应用化学》1996年第1期1-5,共5页Chinese Journal of Applied Chemistry

基　　金：中国科学院"八五"重点基础性研究资助

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ＨＮＭＲ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化学性质，发现聚合速度和所得聚合物分子量均均在水／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。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.

关 键 词：两亲单体 丙烯酰胺 烷磺酸 临界胶束浓度 

分 类 号：O633.3[理学—高分子化学]