Synthesis and Spectroscopic Characterisation of 2,3‐Epoxy/ 3‐Chloro‐2‐hydroxy Propyl Derivatives of Quaternary Ammonium Salts:Useful Cationic Fixing Agents

Abstract

Eight mono-reactive and four bis-reactive 2,3-epoxy/3-chloro-2-hydroxy propyl derivatives of quaternary ammonium salts have been synthesised by reacting epichlorohydrin with suitable tertiary amines and diamines. Mono-reactive derivatives also contain cyano and carboxylic groups in addition to 2,3-epoxy/3-chloro-2-hydroxy propyl groups. The structures of these quaternary ammonium salts have been characterised using IR and 1 H NMR spectroscopic techniques. These quaternary ammonium chlorides have been applied to the cotton fabrics as pretreatments and aftertreatments and promising results have been obtained.Keywords 2,3-epoxypropyl derivative, 3-chloro-2-hydroxypropyl derivative, quaternary ammonium salt Results and discussionMono-reactive 2,3-epoxypropyl derivatives of quaternary ammonium chloride have been synthesised by Scheme 2 Synthesis of bis-reactive 2,3-epoxypropyl and 3-chloro-2-hydroxypropyl derivatives of quaternary ammonium chloride 2,3-Epoxypropyl derivative Chin.

Aftertreatment of Conventional Direct Dyeings of Cotton with a Bis‐reactive Cationic Fixing Agent

“…A bis-reactive cationic fixing agent, ethylenebis[N-(2,3-epoxypropyl)-N,N-dimethylammonium chloride] (I) (Scheme 1) was obtained as a reddishbrown viscous liquid by the reported method 13 and kept in a vacuum desiccator for drying.…”

“…Keeping this in view a bis-reactive derivative, ethylenebis[N-(2,3-epoxypropyl)-N,N-dimethylammonium chloride] has been synthesised by the reported method 13 and applied to cotton fabrics dyed with direct dyes. The effects of different pH conditions and concentrations on the effectiveness of this cationic fixing agent have also been investigated.…”

Synthesis of a Bi-functional Cationic Agent and its Application in Cotton Dyeing

“…Epichlorohydrin was then added slowly with continuous stirring; the temperature was maintained at 40 ± 5 °C and the reaction mixture was stirred for 10-12 h. e mole ratio of TEMED: HCl: epichlorohydrin was 1:2:2. e bi-functional cationic agent (CA1) was a yellowish, viscous liquid with 77.2% solid content. 16,17…”