Polymer-Solvent Phase Separation and Criticality in the Formation of Porous Polymeric Solids: A Modeling Study

04 October 2019, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


This manuscript describes a model for simulating the properties of polymer-solvent mixtures and the nonequilibrium processes that lead to their demixing and gel formation. In this model, the description of the system is based on a coarse grained lattice model of the polymer density field whose parameters can be chosen to reflect the microscopic characteristics of specific chemical systems. By using a lattice model, we are able to perform block renormalization and thereby access study the critical behavior of these systems upon demixing. We relate this critical behavior to the hierarchical structure of the resulting extended gel-like polymer network.


polymer network structure
polymer-solvent demixing
iterative renormalization

Supplementary materials



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