文章摘要
王丽艳.含酰胺键的单子表面活性剂性能研究[J].精细化工,2018,35(6):0
含酰胺键的单子表面活性剂性能研究
Properties of Monomer Surfactants Containing Amide Bond
投稿时间:2017-07-07  修订日期:2017-09-17
DOI:
中文关键词: 表面活性剂  电导率  泡沫性能  乳化性能
英文关键词: Surfactant  conductivity  foam properties  emulsifying properties
基金项目:黑龙江省自然科学基金项目(批准号:B201314);齐齐哈尔大学研究生创新科研项目(批准号:YJSCX2016-ZD08);大学生创新创业训练计划项目(批准号:201710221001);国家自然科学基金(批准号:21506106)
作者单位E-mail
王丽艳 齐齐哈尔大学 wlydlm@126.com 
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中文摘要:
      本文以苯胺、对甲氧基苯胺、氯乙酰氯为原料,通过酰胺化反应在中间体分子结构中引入酰胺键,中间体再分别与N,N-二甲基癸胺、N,N-二甲基十二胺、N,N-二甲基十四胺通过季铵化反应,合成两个系列表面活性剂,即系列Ⅰ和系列Ⅱ,利用1H-NMR和IR对结构进行表征。在25℃条件下,测定系列Ⅰ和系列Ⅱ表面活性剂的临界胶束浓度、起泡性、稳泡性和乳化能力。系列Ⅰ和系列Ⅱ表面活性剂中,Ⅱ14的CMC值最小为0.50 mmol/L,Ⅰ14和Ⅱ14稳泡性最好为100%,Ⅰ12的乳化时间最长为1602 s。相同条件下,传统表面活性剂十二烷基二甲基苄基氯化铵(BAC-12)的CMC值为9.51 mmol/L,稳泡性为44%,乳化时间为366 s。结果表明,系列Ⅰ和系列Ⅱ表面活性剂具有良好的表面活性、起泡性、稳泡性和乳化性。
英文摘要:
      Aniline, p-methoxy aniline, chloroacetyl chloride as materials, the amide was introduced into intermediates molecular structure by amidation. Two series of surfactants(Ⅰ, Ⅱ) were synthesized by intermediates with N, N-dimethyldecylamine, N, N-dimethyldodecylamine, N, N-dimethyltetradecylamine by quaternization respectively. The structures were characterized by 1H-NMR and IR spectra. The critical micelle concentrations (CMC), foaming, foam stability and emulsification ability of Ⅰ and Ⅱ were determined at 25℃. CMC minimum value of Ⅱ14 was 0.50 mmol/L, the best foam stability of Ⅰ14 and Ⅱ14 was 100%, the longest emulsification time of Ⅰ12 was 1602 s. Under the same conditions, for BAC-12, the CMC was 9.51 mmol/L, foam stability was 44%, the emulsification time was 366 s. The results of the tests illustrate that Ⅰ and Ⅱ showed better surface activity and better foaming, foam stability, emulsifying properties.
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