THE SOLUTION PROPERTIES OF SOME POLYOXYETHYLATED NONIONIC SUBSTANCES IN AQUEOUS AND IN NONAQUEOUS SOLVENTS

Publisher Website
Google Scholar
Abstract
Unlike sorbitan and glycerol monostearates, alkylphenol derivatives of polyoxytheylene appear to be monodisperse in benzene when the solutions were examined by vapor pressure lowering. In addition, the existence of micelles was not detected by light-scattering measurements in benzene with a few representative samples. In agreement with light-scattering data, the number average micellar weight in water decreased with increasing number of ethylene oxide units per molecule. A difference of about a factor of 8 between weight and number average molecular weight appears to exist for materials of similar composition.