Surface Properties and Etherification in Microemulsion Systems of Novel Bronsted Acid Surfactants  

作　　者：YANG Mingqing WEI Zhonglin DUAN Haifeng LIN Yingjie 

机构地区：[1]College of Chemistry, Jilin University, Changehun 130012, P. R. China

出　　处：《Chemical Research in Chinese Universities》2018年第3期440-443,共4页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China（No.51373067）.

摘　　要：Novel Bronsted acid-surfactants with different alkyl chains were synthesized via a two-step process, and their surface properties were studied. The critical micelle concentration（cmc）, surface tension at the cmc（γcmc）, and ability of these compounds to lower the surface tension by 0.02 N/re（C20 and pC20） were investigated at 25 and 40 ℃. The molecular architecture of the compounds strongly influenced these physicochemical parameters. The ability of these compounds to lower surface tension was found to be good. Etherification in microemulsions formed by these surfactants as well as dodecylbenzenesulfonic acid（DBSA） was performed; surfactants 3a and 3b were found to be much more efficient than dodecylbanzenesulfonic acid（DBSA）.Novel Bronsted acid-surfactants with different alkyl chains were synthesized via a two-step process, and their surface properties were studied. The critical micelle concentration（cmc）, surface tension at the cmc（γcmc）, and ability of these compounds to lower the surface tension by 0.02 N/re（C20 and pC20） were investigated at 25 and 40 ℃. The molecular architecture of the compounds strongly influenced these physicochemical parameters. The ability of these compounds to lower surface tension was found to be good. Etherification in microemulsions formed by these surfactants as well as dodecylbenzenesulfonic acid（DBSA） was performed; surfactants 3a and 3b were found to be much more efficient than dodecylbanzenesulfonic acid（DBSA）.

关 键 词：Bronsted acid surfactant MICROEMULSION Critical micelle concentration（cmc） ETHERIFICATION 

分 类 号：TQ423[化学工程] O643.36[理学—物理化学]