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Synthesis and Surface Properties of N,N ‐Dimethyl‐ N ‐dodecyl Polyoxyethylene Amine‐Based Surfactants: Amine Oxide, Betaine and Sulfobetaine
Author(s) -
Hou Liya,
Zhang Huinian,
Chen Hui,
Xia Qibo,
Huang Dongyang,
Meng Li,
Liu Xuefeng
Publication year - 2014
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/s11743-013-1540-7
Subject(s) - chemistry , betaine , amine gas treating , electrospray ionization , micelle , amine oxide , pulmonary surfactant , electrospray , polymer chemistry , critical micelle concentration , molecule , oxide , mass spectrometry , organic chemistry , chromatography , aqueous solution , biochemistry
Nonionic–zwitterionic hybrid surfactants, namely N,N ‐dimethyl‐ N ‐dodecyl polyoxyethylene (3) amine oxide, and the corresponding betaine and/or sulfobetaine, have been synthesized. Their molecule structures were characterized by means of electrospray ionization mass spectrometry and 1 H nuclear magnetic resonance. Compared to the structurally related conventional amine oxide, betaine and sulfobetaine, the critical micelle concentrations of the three hybrid surfactants are one order of magnitude smaller than those of traditional ones. The polyoxyethylene segment between the hydrophilic head group and the hydrophobic tail makes the surface activities of the hybrid surfactants superior to their structure‐related counterparts.