Superstructure in dissolved long chains

A series of experiments on solutions of long (C20H41I) and short (C2H5I) chain molecules has verified that the longer molecules form a host micelle for the shorter ones, which appear to interpenetrate the ordered C20− molecules to give an aggregate of similar external morphology. Further measurements on the two systems resulted in a technique to evaluate the contributions of close order I–I, C–C, and C–I terms in the intensity, and from this analysis the I–I superstructure scattering function could be isolated from the rest of the scattering. The scattering function fitted that of a hollow sphere of radius 17 Å, as predicted from earlier experiments.