中文摘要：

以丙二酸二乙酯为原料，与溴代正癸烷经单边取代反应制得2-癸基丙二酸二乙酯（1）；1与1，3-二溴丙烷发生双边取代反应制得四乙基二十五烷-11，11，15，15-四羧酸酯（2）；2依次发生皂化、酸化及脱酸反应制得2，6-二癸基庚二酸（4）；4和NaOH经酸碱中和反应合成了一种新型羧酸盐阴离子Gemini表面活性剂———2，6-二癸基庚二酸钠（5），总收率46．7％，其结构经1HNMR，IR和MS表征。采用表面张力法研究了5的表面活性。结果表明：5具有较强的聚集能力和界面吸附能力，其cmc，ycmc，C20，Гmax和Amin分别为0．29mmol·L-1，31．96mN．m-1，5．640μmol·m-2和0．295nm2。

英文摘要：

2-Decyl malonate （1） was obtained by substitution of diethyl malonate with l-bromodeeane. A novel anionic Gemini surfactant, sodium 2,6-didecylheptanedioate （5） , with the overall yield of 46.7%, was synthesized through saponification, acidification and acid-base neutralization from 2, which was prepared by substitution of 1 with 1,3-dibromopropane. The structure was characterized by 1H NMR, IR and MS. The surface activities of 5 were investigated by surface tension method. The resuits showed that 5 exhibited strong aggregation and adsorption ability with cmc, γcmc, C20, Fmax and Amin of 0.29 mmol·L-1 , 31.96 mN·m -1 , 5. 640μmol·m-2 and 0. 295 nm2, respectively.