新型双联阴离子表面活性剂的合成与表面活性研究  

STUDY ON SYNTHESIS AND SURFACE ACTIVITY OF AN ANIONIC GEMINI SURFACTANT

作　　者：赵田红[1] 胡星琪[1] 王忠信[2] 彭国峰[1] 谷秋志[3] 

机构地区：[1]西南石油大学化学化工学院,四川成都610500 [2]大庆油田有限责任公司第一采油厂,黑龙江大庆163000 [3]大庆石化公司塑料厂,黑龙江大庆163000

出　　处：《精细石油化工》2007年第3期7-11,共5页Speciality Petrochemicals

基　　金：四川省重点学科建设项目(SZD0413).

摘　　要：以乙二胺、月桂酰氯、2-溴乙基磺酸钠为原料制备了阴离子型Gemini表面活性剂乙撑-双(N-乙磺酸-十二酰胺)钠盐(简称DTM-12)。以IR和~1H NMR对其结构进行了初步表征,考察了无机盐和醇对DTM-12表面活性的影响。结果表明;DTM-12水溶液的cmc为5.0×10^(-4)mol/L),γ_(cmc)为29.7 mN/m;DTM-12与DTAB组成的复配体系在摩尔比为3:7时,cmc可达1.06×10^(-4)mol/L,γ_(cmc)可达25.4 mN/m,优于十二烷基磺酸钠组成的复配体系。Gemini type ethylene-（N, N＇-bis-sodium ethylene sulfonate dodecylamide）（DTM-12） was synthesized from ethylenediamine, lauroyl chloride and 2-Bromoethylene-sulfonate. The structure of the product was characterized with IR and 1H NMR spectra. The cmc value （5.0 × 10^-4 mol/L） of the aqueous solution of DTM-12 was one-sixteenth and one-twentieth as smaller as sodium dodecyl-sulphate and sodium dodecyl-sulfonate, respectively, and the γcmc （29. 7 mN/m） was also 8 - 9 mN/m lower than the latter two surfactants. The effects of salt and alcohol on the surface tension of the synthesized surfactant were measured. The composite of DTM-12 ＋ DTAB with 3 ： 7 moles had better surface activity than sodium dodecyl-sulfonate composite system with cmc value of 1.06× 10^-4 mol/L and γcmc value of 25.4 mN/m.

关 键 词：双子表面活性剂 合成 表面活性 复配性质 

分 类 号：TQ423.1[化学工程]