PREPARATION AND PROPERTIES OF SULFONATE SALT-TYPE CLEAVABLE SURFACTANTS WITH A 1,3-DIOXANE RING

A series of di anionic cleavable surfactants were prepared by the cond ensation of aldehydes with 2,2-bis(hydroxymethyl)-1,3-propanediol, fol lowed by reaction with 1,3-propanesultone in the presence of sodium hy dride. Surfactant 5a had a different H-1 nuclear magnetic resonance sp ectrum in D2O than products 5b-d. This was rationalized by its differe nt conformation, which originates from the self-coiling of its alkyl c hain. The critical micelle concentrations, Krafft points and hydrolysi s properties of these surfactants were determined.