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Water solubilization in microemulsions containing amines as cosurfactant
Author(s) -
Singh H. N.,
Prasad Ch. Durga,
Kumar Sanjeev
Publication year - 1993
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02545370
Subject(s) - microemulsion , pulmonary surfactant , chemistry , cetylpyridinium chloride , cyclohexylamine , bromide , cationic polymerization , solubilization , amine gas treating , organic chemistry , chemical engineering , inorganic chemistry , biochemistry , engineering
Water‐in‐oil microemulsions were produced by mixing different combinations of the cationic surfactants cetyltrimethylammonium bromide and cetylpyridinium chloride, n ‐alkanes (C 5 –C 7 ) and benzene as oils, n ‐alkylamines (C 6 and C 8 ) and cyclohexylamine as cosurfactants with water. The influence of chainlength of the alkanes and amines on water solubilization behavior of these systems has been investigated. The solubilization of water in a particular microemulsion is governed by the partitioning of amines among oil, water and interfacial phases, depending on the chainlength and nature of oil and amine, and their interaction with the surfactant. The molar ratio of amine to surfactant at the droplet interface increased with the length of the oil chain. The free energy changes accompanying cosurfactant adsorption at the interface have also been computed.