Transition-like zone

In the glass-like zone, the values of the creep compliance function seem to be independent of the concentration however, the changes that take place in the values of J t) in the transition zone are larger the lower the concentration. The length of the plateau increases with the concentration, and the plateau and terminal zones merge into a single region at low concentrations. The location of the isotherms on the time scale is shifted to shorter chains as the concentration decreases. 

Dendrigraft molecules are star-like in the Oth generation, but have a uniform interior with an exterior transition zone for G3 [17,34], Random hyperbranched molecules have broad distributions both in molecular mass and in shape [17], Scattering from hyperbranched is closer to that of linear polymers than to spheres, indicating that there is a gradually tapering distribution on units from the center to the exterior. 

While CMC is assumed to be an observable and definite value in the case of surfactant monomers, there are frequent reports in the literature of the formation of aggregates or micelle-like associations in solutions of organic solutes so dilute as to preclude apparently the formation of micelles [208, 267-269, 272, 275,278]. Work with different types of commercial surfactants has indicated that molecularly non-homogeneous surfactants do not display the sharp inflection in surface tension associated with CMC in molecularly homogeneous monomers, but rather the onset of aggregation is broad and indistinct [253,267,268]. The lack of well-defined CMCs for non-homogeneous surfactants is speculated to result from the successive micellization of the heterogeneous monomers at different stoichiometric concentrations of the surfactant, which results in a breadth of the monomeric-micelle transition zone. 

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