Can aldehydes participate in the nanostructuration of liquids containing charged micelles?

Abstract

The phase diagrams of several ternary systems water/sodium dodecylsulfate (SDS)/alkanal are studied as well as the elec. cond. of such systems for various compns. Comparison of the results to those obtained fro the analogous systems water/SDS/alc. shows remarkable similarities. Consequently, one can suppose a similar behavior of alcs. and alkanals in these media. In particular, it is probable that long-chain alkanals act as cosurfactants whereas short-chain alkanals are not favorable for micelle formation. For a particular system: water/SDS/pentanal and the corresponding system: water/SDS/1-pentanol small-angle neutron scattering expts. yield further arguments for this interpretation.