不同碳链长度的羟基丙磺基甜菜碱合成及性能研究

Preparation and Properties of Hydroxyl Propylsulfobetaine with Different Hydrophobic Carbon Chain Lengths

倪 涛 夏亮亮 刘昭洋 王进春

NI Tao，XIA Liangliang，LIU Zhaoyang， WANG Jinchun

为探究疏水碳链长度对烷基二甲基羟基丙磺基甜菜碱性能的影响规律， 以环氧氯丙烷、 烷基伯胺 （十二胺、十四胺、 十六胺、 十八胺）等为原料合成了不同碳链长度的烷基二甲基羟基丙磺基甜菜碱， 研究了产物水溶液的表面张力、 临界胶束浓度和泡沫性能。研究结果表明： 随着疏水碳链长度由 C12增至 C18， 羟磺基甜菜碱溶液表面张力降低， 临界胶束浓度由 3.36 mmol/L减至 1.60 mmol/L， 临界表面张力也由 29.6 mN/m降至 25.8 mN/m， 羟磺基甜菜碱与十二烷基硫酸钠 SDS协同形成胶束的能力随着疏水碳链长度增加而增强； 羟磺基甜菜碱表面活性剂的起泡及稳泡能力也随着疏水碳链增长而增强。图 4表 1参 12

In order to study the effect of the hydrophobic chain length on the performance of the hydroxyl propylsulfobetaine，dodecyl（myristyl/cetyl/octadecyl）-2-hydroxy-1- propylsulfobetaine were synthesized using epichlorohydrin and primary amine（dodecyl/myristyl/cetyl/octadecyl amine）as the main raw materials and the surface tension，critical micelle concentration（ccmc） and foam properties of the solutions were tested. The results shown that with increase of hydrophobic carbon length of hydroxyl propylsulfobetaine increased from C12 to C18，the surface tension of the solutions with the same concentration decreased，the ccmc value decreased from 3.36 mmol/L to 1.60 mmol/L and γcmc value decreased from 9.6 mN/m to 25.8 mN/m，respectively. In addition，the foaming performance and synergism action with SDS of hydroxyl propylsulfobetaine improved with the increase of the hydrophobic carbon chain length.

10.19346./j.cnki.1000-4092.2017.03.020