Statistical Theory of Associating Polymer Solutions: Interfacial   Properties
  The interfacial structure formed in thermoreversible associating polymer solutions is studied within the density functional approach based on Flory's arguments of tree-like configurations of cluster associations. The unique characteristics of the interfacial region can be described in terms of the monomer density along the interface. For a certain value of the association parameter, which controls thermoreversible chemical reaction between associating functional groups, the density profile is not smooth and undergoes a sudden jump at the point where the number of bonded functional groups is small. Analytical expression for the interfacial tension is given and results of numerical calculations are presented. 
Aleksander V. Ermoshkin, Igor Erukhimovich, Jeff Z.Y. Chen