Synthesis and Performance of 2,3-Bis(stearoloxy)-propyltrimethylamine Quaternary

Abstract

Abstract In this study, an attempt has been made to synthesize esterquat by esterification of stearic acid and 3-dimethylamino-1,2-propanediol (DMAPD) followed by quaternization with dimethyl sulfate, resulted in new quaternary useful as biodegradable fabric softener (2,3-bis(stearoloxy)-propyltrimethylamine [DMAPDEQDMS]). The softening property, biodegradation of DMAPDEQDMS were investigated, and compared with distearyl dimethylammonium chloride (D1821) and other ester quaternary. The results showed that DMAPDEQDMS's biodegradation was better than that of D1821, and its softening property was comparable with D1821. It is a new style softener with excellent properties, which can replace D1821.