Abstract: The branched chain glycosides were prepared from 2-propyl-1-heptanol and branched C₀₈₁₀ alcohol (which was mixed from equal mass 2-propyl-1-heptanol and 2-ethylhexanol) separately with glucose by one step method,and their surface activities as well as the foaming,emulsifying and wetting performance were investigated.Results showed that cmc and ams of the branched chain glycosides increase with increase of average polymerization degree,but γ_cmc and Γ_max decrease.The cmc and ams of mixed branched chain glycosides are lower than that of single branched chain glycoside,but the Γ_max is bigger.The foam stability of the branched chain glycosides is worse as comparing with that of n-APG0810.With increasing average polymerization degree,the wetting power of the branched chain glycosides decreases.

Key words: branched chain glycoside, surface activity, application performance