含酰胺键的吡啶双子表面活性剂合成及性能  

Synthesis and properties of pyridine gemini surfactant containing amide bond

作　　者：王丽艳[1] 武江雷 楼慈涵 杨佳 段松言 陈嫚 WANG Li-yan;WU Jiang-lei;LOU Ci-han;YANG Jia;DUAN Song-yan;CHEN Man(Chemistry and Chemical Engineering Institute,Qiqihar University,Qiqihar 161006,China)

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006

出　　处：《化学研究与应用》2020年第6期1022-1029,共8页Chemical Research and Application

基　　金：黑龙江省自然科学基金联合引导项目(LH2019B021)资助;黑龙江省高等学校植物性食品加工技术特色学科专项项目(YSTSXK201848)资助;齐齐哈尔大学研究生创新科研项目(YJSCX2018-ZD07)资助;黑龙江省大学生创新创业训练计划项目(201910232022)资助。

摘　　要：以间苯二甲酰氯、氨基吡啶、氯乙酰氯和长链伯胺(n为8、12、14、16)为原料,通过酰胺化反应合成了1,3-二[N-(3-吡啶基)]苯甲酰胺(中间体A)和N-烷基-2-氯乙酰胺(中间体B)。中间体A和中间体B通过季铵化反应,合成目标产物(I8,I12,I14,I16)。利用1H-NMR、FTIR对产物及中间体结构进行表征。通过电导率法测定了目标产物在25℃、35℃、45℃的临界胶束浓度(CMC),进行热力学参数计算。用吊环法测定了25℃时目标产物的表面张力γ,计算了相关的表面性能参数。测定目标产物在25℃下的稳泡性及乳化能力。结果表明,合成表面活性剂具有良好的表面活性、稳泡性和乳化能力。1,3-Bis[N-(3-pyridyl)]benzamide(A)and N-alkyl-2-chloroacetamide(B)were synthesized via amidation using isophthaloyl chloride,aminopyridine,chloroacetyl chloride and long-chain primary amines(n was 8,12,14,16).The target products(I8,I12,I14,I16)were synthesized by quaternization of intermediate A and B.The structures of the products and intermediates were characterized by 1H-NMR and FTIR.The critical micelle concentration(CMC)of the target products was determined at 25℃,35℃and 45℃by the conductivity method,and the relevant thermodynamic parameters were calculated.The surface tensionγof the target products at 25℃was determined by the ring method,and the relevant surface performance parameters were calculated.The foam stability and emulsification ability of target products were measured at 25℃.The results illustrated that synthetic surfactants had excellent surface activity,foam stability and emulsifying ability.

关 键 词：表面活性剂 电导率 热力学参数 表面张力 

分 类 号：O626.32[理学—有机化学]