磺酸盐型双子表面活性剂的合成及性能  

Synthesis and Performance of a Sulfonate Gemini Surfactant

作　　者：王瑞娟[1] 李刚森[1] 闫海涛 李艳红 WANG Rui-juan LI Gang-sen YAN Hai-tao LI Yan-hong(School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450002, Henan, China Department of Protection of Cultural Relies, Henan Provincial Institute of Cultural Relies and Archaeology, Zhengzhou 450000, He nan, China)

机构地区：[1]郑州轻工业学院材料与化学工程学院,河南郑州450002 [2]河南省文物考古研究院文物保护室,河南郑州450000

出　　处：《精细化工》2017年第2期166-171,共6页Fine Chemicals

基　　金：河南省高等学校重点科研项目(15A150028)~~

摘　　要：以十二胺、1,6-二溴己烷和1,3-丙磺酸内酯为主要原料,分别采用极性头基加入法和联结基加入法,合成了一种磺酸盐型双子表面活性剂1,6-双(N-十二烷基-N-丙基磺酸钠)-己烷〔简称12-6-12(SO_3)_2〕。用1HNMR和ESI-MS表征了中间体和产物的结构,并考察了12-6-12(SO_3)_2的表面活性。结果表明:该表面活性剂水溶液在30℃下,临界胶束浓度(CMC)为0.015 mmol/L、表面张力为33.50 m N/m、表面过剩吸附量(Γmax)为2.78×10-6mol/m2、分子最小截面积(Amin)为0.60 nm2。该磺酸盐双子表面活性剂的CMC是结构相似的传统单链表面活性剂十二烷基磺酸钠(SDS)CMC(25℃,8.0 mmol/L)的0.2%,是结构相似的磺酸盐双子表面活性剂1,3-双(N-十二烷基-N-丙基磺酸钠)-丙烷(12-3-12(SO_3)_2)CMC(25℃,0.048 mmol/L)的31%。A sulfonate gemini surfactant 1,6-bis（N-dodecyl-N-propane sulfonate sodium）-hexane [12-6-12（SO_3）_2]was prepared with dodecylamine,1,6-dibromohexane and 1,3-propane sulfonate as starting materials by polar heads method and spacer connecting method,respectively. The structure of the intermediates and final product was confirmed by1 HNMR and ESI-MS. The surface activity of the final product was also measured. The performance results showed that the critical micelle concentration（CMC） of 12-6-12（SO_3）_2at 30 ℃ was 0. 015 mmol/L and surface tension was 33. 50 m N/m.Furthermore,the maximum surface excess concentration（Γmax） was 2. 78 × 10-6mol/m2,and the minimum area per molecule（Amin） was 0. 60 nm2. The behavior of 12-6-12（SO_3）_2was compared with that of the single-chained surfactant,sodium dodecyl sulfate（SDS） and the sulfonate gemini surfactant,1,3-bis（N-dodecyl-N-propane sulfonate sodium）-propane [12-3-12（SO_3）_2]. It was found that the CMC of 12-6-12（SO_3）_2reached only 0. 2% and 31% of that comparing with SDS（25 ℃,8. 0mmol/L） and 12-3-12（SO_3）_2（25 ℃,0. 048 mmol/L）,respectively.

关 键 词：双子表面活性剂 磺酸盐 合成方法 

分 类 号：TQ314[化学工程—高聚物工业]