Dialkyl glutamic surgar ester surfactant, preparation method and use thereof

Abstract

A surfactant, glucolipide dialkylglutamate, used for the dual-layer coating film and the enzyme immobilizing is prepared through the activated carbon fixated SnCl4 as catalyst, proportionally mixing emtrol with glutamic acid, stirring, adding said catalyst, catalytic reaction, filter, dewatering, dissolving in acetone, adding less concentrated hydrochloric acid or HCl gas for depositing and recrystallizing, mixing the crystals with gluconolactone and triethane in alcohol, stirring while refluxing, vacuum distilling and recrystallizing.

Description

technical field [0001] The invention relates to a dialkyl glutamate sugar ester surfactant, a preparation method and application thereof, and belongs to the field of organic synthetic surfactants. Background technique [0002] The traditional preparation of surfactants often uses catalysts that are highly corrosive to equipment such as strong acids and alkalis, such as concentrated sulfuric acid, etc., which have serious impacts on the environment, and have disadvantages such as complex reactions, many by-products, and cumbersome post-treatment. As far as synthetics are concerned, their properties in terms of biocompatibility and biodegradability have always been the focus of people's attention. Because amino acids and their derivatives have good biocompatibility, strong affinity, environmental friendliness, reproducibility and low price, they are currently the priority for people to design and prepare surfactants for biomolecular release. Some data show that amino acid der...

AI Technical Summary

Problems solved by technology

However, in the synthesis process of modern surfactants, there is still serious process pollution due to the lack of solutions to the problem of solvent use and the absence of suitable and efficient catalysts.