期刊
JOURNAL OF SURFACTANTS AND DETERGENTS
卷 17, 期 5, 页码 951-957出版社
WILEY
DOI: 10.1007/s11743-014-1582-5
关键词
Foaming properties; Gemini surfactants; Surface activity
A series of cationic gemini surfactants containing different spacer length were synthesized and analyzed structurally. It was shown that the surface tension (sigma) and critical micelle concentration (CMC), which had a maximum for the n-C4H8 spacer depended on the spacer length. The foaming ability and foam stability are high for the gemini surfactants with short spacers (C2H4 to n-C4H8), while longer spacers lead to a distinct decrease of these foam parameters. Foaming properties are discussed in terms of configuration and conformation of a surfactant molecule and in relation to micellization state kinetic.
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