Abstract: Rosin-based polyglucoside (RPG), a kind of new nonionic surfactant, was synthesized from disproportionated rosin alcohol polyoxylethene ether(RP) through transacetalization, and reactions including synthesis of butyl polyglycoside and glycoside exchanging were studied. The suitable reaction conditions were obtained as follows: molar ratio of n-butanol to glucose 4:1,dosage of catalyst p-toluenesulfonic acid 0.5%(based on glucose mass), reaction temperature for the synthesis of butyl glucoside 110℃, reaction temperature for glycoside exchanging reaction 140℃, glucose conversion ratio upto 99.5%. Surface physicochemical properties of RP and RPG were measured. Relationships between surface physiochemical properties of the product and polymerization degree(n) of epoxy ethane were studied. Emulsifying power(EP) and foaming power(FP) of RPG were much better than those of RP.

Key words: polyglucoside, rosin, disproportionated rosin alcohol, polyoxylethylene ether