SYNTHESIS AND PROPERTIES OF ASYMMETRICAL NONIONIC DOUBLE CHAIN SURFACTANTS FROM LYSINE
作者:
M'R. Infante,
J. Seguer,
A. Pinazo,
M. P. Vinardell,
期刊:
Journal of Dispersion Science and Technology
(Taylor Available online 1999)
卷期:
Volume 20,
issue 1-2
页码: 621-642
ISSN:0193-2691
年代: 1999
DOI:10.1080/01932699908943811
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
New monodisperse nonionic surfactant molecules based on lysine with two different fatty acid chains in the hydrophobic part and one or two polyoxyethylene methoxy capped chain s (EOn-Me) in the hydrophilic head group were synthesized and their physicochemical and toxicity properties were compared to the symmetrical homologs with the same number of methylene groups in the acyl fatty chains. Our findings indicate that the asymmetry studied results in higher surface active properties and in a greater capacity for micellization when compared with their symmetrical analogs, albeit with a slight increase in toxicity.
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