Unified altered free volume state model for transport phenomena in polymeric media

Abstract

An Altered Free Volume State (AFVS) model has been proposed for analysing and correlating a variety of transport phenomena in polymeric media. The key concept is the calculation of the alteration of the free volume state of the parent medium with respect to a carefully defined reference state. This approach enables the prediction of the influence of alteration of many variables including the changes in the physico-chemical structural attributes of the polymeric systems on a surprisingly large variety of transport phenomena. The successful application of this unified model has been demonstrated by analysing exhaustive experimental data.