Synthesis of 2‐alkyloyl‐1,4,3,6‐dianhydrosorbitol‐5‐sulfates and evaluation of the surface active properties

Abstract

927New anionic surfactants 2-alkyloyl-l,4,3,6-dianhydrosorbitol-5-sulfates were synthesized by sulfation of 2-alkyloyl-l,4,3,6-dianhydrosorbitol. Studies on the surface active properties such as surface tension, dispersibility and emulsifiability of these surfactants were carried out. The results showed these surfactants are better dispersants and emulsifiers than Span 80 and Span 85.This paper is a study of isosorbide derivatives. The formation, chemical properties and conformations of isosorbide (See [2], Scheme 1) were listed in Hockett {1), Montgomery {2,3,5), Soltzberg (4), Baker (6), Buck (7) and Brimacombe (8). 'H-nmr studies for isosorbide and its diacetyl ester were performed by Inch (9), Abraham

Sulfonic acid functionalised ordered mesoporous materials as catalysts for condensation and esterification reactions

“…In contrast, the much more hydrophobic MCM-SO 3 H readily effects formation of a small amount of monoacylated products, and because of the detergency of the latter, homogenisation of the reaction medium. Main products are monolauroylisosorbide, which is an important detergent precursor, 11 or in a later stage, the isosorbide diester (entry 3).…”