Synthesis and Characterization of Glycoside-Based Trisiloxane Surfactant

摘要

The synthesis of glycoside-based trisiloxane surfactants of the general formula Me3SiOSiMeR1OSiMe3 (R1 = (CH2)3(OCH2CH2)2OR2, R2 = glycosyl) is described, and the surface activity properties of the surfactant are studied. Diethylene glycol monoallyl ether glycoside is synthesized by reacting the diethylene glycol monoallyl ether with glucose. The glycoside-based trisiloxane surfactant is prepared by hydrosilylation of the precursor glycoside with hydrogen-containing trisiloxane. The product is structurally characterized by IR, 1H NMR and MS. The surface tension of an aqueous solution is reduced to approximately 20 mN m−1 at concentration level of 10−4 mol L−1.