Influence of tetrabutylammonium bromide based ionic liquid on the aggregation behavior of Dodecyltrimethylammonium bromide in the Range (۲۹۳.۱۵ K to ۳۱۳.۱۳K): Acoustic and volumetric investigation

The effect of Tetrabutylammonium bromide (TBAB) based ionic liquid on the aggregation behaviour of a cationic surfactant, dodecyltrimethylammonium bromide (DTAB) in aqueous medium over a wide temperature range (۲۹۳.۱۵ to ۳۱۸.۱۵) K has been studied by volumetric and compressibility measurements. From the obtained density data, volumetric properties (apparent molar volumes and partial molar volumes) of the surfactant in monomer and in micellar form have been evaluated and discussed in the term of respective ionic and dipole interactions. The data obtained were analyzed to determine the effect of (i) temperature and (ii) the salt added of the surfactant. Also, these results have been interpreted in terms of molecular interactions occurring in the binary mixtures of the present study. The addition of TBAB has a depressing effect on CMC values of studied surfactant in aqueous medium.

کلیدواژه ها:

Ionic liquid ، Density ، Critical micelle concentration ، Cationic surfactant ، Dodecyltrimethylammonium bromide ، Tetrabutylammonium bromide