Premium
Synthesis, Characterization and Surface‐Activity of a Polyoxyethylene Ether Trimeric Quaternary Ammonium Surfactant
Author(s) -
Zhang Jiaoxia,
Zheng Yaping,
Yu Peiying,
He Lin,
Wang Huining,
Wang Rumin
Publication year - 2010
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-009-1166-y
Subject(s) - chemistry , pulmonary surfactant , surface tension , ammonium , salt (chemistry) , aqueous solution , ether , fatty alcohol , alcohol , thionyl chloride , organic chemistry , inorganic chemistry , polymer chemistry , chloride , quantum mechanics , biochemistry , physics
A trimeric quaternary ammonium salt surfactant containing polyoxyethylene chains was synthesized from fatty alcohol polyoxyethylene ether, pentamethyldiethylenetriamine and thionyl chloride by a two‐step process. Its chemical structure was characterized, and the surface activity in aqueous solution was studied at different temperatures. The results showed that when the concentration attains the CMC (1.0 mmol/L), the surface tension is 38.9 mN m −1 and the conductivity is 105.3μS cm −1 at 25 °C. These show that the trimeric quaternary ammonium salt surfactant containing polyoxyethylene chains exhibits high surface activity and effectively reduces the surface tension of water.