Phase behaviour of ordered polymer solutions

Phase Behaviour of Colloid + Polymer Mixtures

A new treatment of the phase behaviour of a colloid + nonadsorbing polymer mixture is described. The calculated phase diagrams show marked polymer partitioning between coexisting phases, an effect not considered in the usual effective-potential approaches to this problem. We also predict that under certain conditions an area of three-phase coexistence should appear in the phase diagram. Introdu...

Critical polymer-polymer phase separation in ternary solutions.

We study polymer-polymer phase separation in a common good solvent by means of Monte Carlo simulations of the bond-fluctuation model. Below a critical, chain-length-dependent concentration, no phase separation occurs. For higher concentrations, the critical demixing temperature scales nonlinearly with the total monomer concentration, with a power law relatively close to a renormalization-group ...

Phase-separation Phenomena in Polymer Solutions

Phase separation of polymer solutions and interactions of globules

A new method is proposed for a quantitative investigation of interchain interactions in a poor solvent within the framework of a Lifshits type mean-field approximation. Density distributions and interaction free energy for two globules equilibrated at an arbitrary distance ( from each other are calculated. The corresponding pair virial coefficient and coexistence binodal curve in the second vir...

comparison between to versions of the SAFT EOS in the study of PVT and VLE phase behavior of pure polymer melts and binary polymer solutions