石油化工高等学校学报2011，Vol.24Issue(6)：50-53,4.DOI:10.3969/j.issn.1006-396X.2011.06.013
苯并咪唑季铵盐表面活性剂的合成及性能
Synthesis of a Surfactant of Benzimidazole Quaternary Ammonium Salt and Its Properties
摘要
Abstract
The cationic surfactant 1,3-dibenzyl-2-undecyl benzimidazole quaternary ammonium salt(UBS) was prepared by the reaction of benzyl chloride with 2-undecyl benzimidazole(UB), which was synthesized with o-phenylenediamine and lauric acid. The structures of UB and UBS were characterized by IR and 1H-NMR. The surface activities of UBS in aqueous solution were studied at different temperature. At 35 ℃ , the critical micelle concentration (CMC) of UBS is 0. 51 mmol/L and the surface tension at CMC (γcmc) is 39. 6 mN/m. As the temperature decreases, the CMC of UBS lessens slightly and the γcmc increases. The foam properties of UBS aqueous solution were determined and compared with LAS and OP-10, the foaming power of UBS is the highest and its steady of foam is the lowest among of them.关键词
苯并咪唑/季铵盐/表面活性剂Key words
Benzimidazole/Quaternary ammonium salt/Surfactant分类
能源科技引用本文复制引用
刘刚,郭祥峰,胡冬慧,蒋红梅,贾丽华..苯并咪唑季铵盐表面活性剂的合成及性能[J].石油化工高等学校学报,2011,24(6):50-53,4.基金项目
黑龙江省教育厅重点项目(12511z030) （12511z030）
黑龙江省科技攻关计划项目(2004G0332-00). （2004G0332-00）
