日用化学工业2012，Vol.42Issue(1)：19-23,5.
1-(2-羟丙基磺基)-3-十二烷基咪唑内盐的合成与性能
Synthesis and properties of 1 - (2 -hydroxy propanesulfo) -3 -dodecylimidazol inner salt
摘要
Abstract
A zwitterionic liquid surfactant ,1 - ( 2 - hydroxy propanesulfo) - 3 - dodecylimidazol inner salt (HPSDim) , was synthesized with sodium 3 - chloro - 2 - hydroxy - propane sulfonate and n - dodecyl imidazole as starting materials. Molecule structure of HPSDim was characterized by ESI - MS, FTIR and 1HNMR. Surface active parameters of HPSDim in 0. 5 mol ? L-1 NaC1 aqueous solution at 35 ℃ ,such as the critical micelle concentration ( cmc) and the mean aggregation number (Nm ) , were determined by fluorescence probe and surface tension method separately. Results showed that Krafft point of HPSDim is high as (65. 8 ± 0. 5) ℃ However,HPSDim is readily dissolved in 0. 5 mol ? L-1 NaC1 aqueous solution at room temperature. Value of cmc achieves 0. 98 mmol ? L-1 and 1.0 mmol ? L-1 determined by surface tension method and fluorescence probe method respectively. Nm increases linearly with increasing of HPSDim concentration within range of 6.0 to 8.0 mmol ? L-1 , and the critical micelle aggregation number (Nm.c) can be calculated as 30. 9. Its packing parameter (Pc) is 0. 40. Shape of micelle of HPSDim might be inferred as cylindrical.关键词
离子液体型两性表面活性剂/1-(2-羟丙基磺基)-3-十二烷基咪唑内盐/Krafft点/临界胶束浓度/临界胶束聚集数Key words
ionic liquid - like zwitterionic surfactant/ 1 - (2 - hydroxy propanesulfo) - 3 - dodecylimidazol inner salt/Krafft point/critical micelle concentration/critical aggregation number分类
化学工程引用本文复制引用
胡洁,林泽云,黄以军,董莉莉,刘雪锋..1-(2-羟丙基磺基)-3-十二烷基咪唑内盐的合成与性能[J].日用化学工业,2012,42(1):19-23,5.基金项目
江苏省高校“青蓝工程”青年骨干教师资助项目(苏教师[2010]27号) （苏教师[2010]27号）
浙江赞宇科研基金资助项目 （）
江苏省精细石油化工重点实验室开放基金资助项目(KF0903) （KF0903）
