Solutions, demixed polymer

Vrij, A., Equation for the interfacial tension between demixed polymer solutions, J. 

Silberberg, A. and Kuhn, W. (1954) Size and shape of droplets of demixing polymer solutions in a field of flow. 

INTERFACIAL TENSION OF DEMIXED POLYMER SOLUTIONS NEAR CRITICAL SOLUTION TEMPERATURE... 

The interfacial tension between demixed liquid phases is one of the important physical properties of polymer solutions and polymer mixtures. In particular, the interfacial tension near critical point is closely related to concentration fluctuations associated with critical opalescence and spinodal decomposition. Recently, some theoretical treatments have been presented for the interfacial tension of demixed polymer solutions and polymer mixtures. For poly-... 

SH1 Shinozaki, K., Abe, M., and Nose, T., Interfacial tension of demixed polymer solutions over a wide range of reduced temperature. Polymer, 23, 722, 1982. 

SC2 Schneider, A. and Wolf, B.A., Interfacial tension of demixed polymer solutions Augmentation by polymer additives, Mactooto/. Rapid Commun., 19, 561, 1997. 

Gailard and coworkers [215, 266] demonstrated the surface activity of block copolymers by studying the interfacial tension reduction in demixed polymer solutions. Addition of a FS-b-FBD diblock copolymer to the PS/PBD/styrene ternary system showed first a characteristic decrease in interfacial tension followed by a leveling off, which is similar to the evolution of interfacial tensions for oil-water systems in the presence of surfactants. The early investigations were more of case studies that demonstrated the phenomenon without giving the fundamental detail required to help the understanding of the emulsification process and the factors that govern it. 

The square gradient approach of Cahn and Hilliard" has also been used but can only be tested close to the critical point of the mixture where interfacial tension data are not available. It has, however, been applied to demixed polymer solutions. 

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