Synthesis and Characterization of a Quaternized Glucosamide-Based Trisiloxane Surfactant

• Published in: Journal of surfactants and detergents 2014-07, Vol.17 (4), p.733-737
• Main Authors: Han, Fu, Liu, Yi-lang, Gao, Ya-di, Liang, Yin-lian, Zhou, Ya-wen, Xu, Bao-cai
• Format: Article
• Language: English
• Subjects: Aquatic Pollution; Characterization; Chemical synthesis; Chemistry; Chemistry and Materials Science; Glucosamide; Halogenated hydrocarbons; Industrial Chemistry/Chemical Engineering; Original Article; Physical Chemistry; Polymer Sciences; Quaternization; Sulfuric acid; Surface tension; Surfaces and Interfaces; Surfactants; Synthesis; Thin Films; Trisiloxane; Waste Water Technology; Water Management; Water Pollution Control
• ISSN: 1097-3958; 1558-9293
• DOI: 10.1007/s11743-014-1571-8

The synthesis of quaternized glucosamide-based trisiloxane surfactant (QGS) of the general formula Me 3 SiOSiMeR 1 OSiMe 3 (R 1  = (CH 2 ) 3 N + (CH 3 ) 2 (CH 2 ) 2 R 2 , R 2  = glucosamide group) was described, and the surface activity properties of the surfactant were studied. The N -[2-(dimethylamino)ethyl]- d -gluconamide was synthesized by amidation of the ethylenediamine with d -gluconolactone. The 3-(3-chloropropyl)-1,1,1,3,5,5,5-heptamethyltrisiloxane was prepared by the acid-catalyzed reaction of a silane monomer. The QGS was prepared by quaternization of the precursor halogenated hydrocarbon with a tertiary amine. They were structurally characterized by IR, 1 H NMR and MS. And it reduced the surface tension of water to approximately 21 mN m −1 at concentration levels of 10 −3  mol L −1 .