Now showing items 1-10 of 584
Synthesis and surface-active properties of novel cleavable gemini surfactants
(Springer Heidelberg, 2021-09)
A novel series of quaternary ammonium gemini compounds having a butynylene spacer and different hydrocarbon chain lengths (CGBu8-16) were prepared. Carbonate group inserted between the hydrocarbon chains and the polar heads ...
Synthesis of New Pentaerythritol-Based Gemini Surfactants
(Georg Thieme Verlag Kg, 2001-06)
New dimeric or gemini surfactants bearing double-chain with two or four sulfonate groups, and quadruple-chain with four sulfonate groups, were prepared from pentaerythritol in good overall yields. All these surfactants ...
A Convenient Synthesis of Quaternary Ammonium Gemini Surfactants from Long-chain alkyldimethylamines and Epichlorohydrin
(Georg Thieme Verlag Kg, 2002-12)
Aqueous micellar systems proved to be an excellent reaction medium for the selective synthesis of bis-quaternary ammonium salts 5a-c from epichlorohydrin 2 and long-chain alkyldimethylamines 1a-c, in the presence of the ...
New family of nonionic gemini surfactants: Determination and analysis of interfacial properties
(American Chemical Society, 2002-04)
The interfacial properties of a new family of nonionic surfactants derived from alkyl glucosides were studied. The physicochemical parameters of these dimeric compounds were compared with those of their monomeric counterparts. ...
N-Acetylated Gemini Surfactants: Synthesis, Surface-Active Properties, Antifungal Activity, and Ecotoxicity Bioassays
(Scientific Research Publishing, 2015-05)
A series of N-acetylated cationic gemini surfactants (3a-e) having dimeric structures derived from tertiary amines were synthesized. Their antifungal potency and surface properties were determined. It also studied the acute ...