Densities and Viscosities of Binary Mixtures of Poly(vinyl chloride) and Tetrahydrofuran at Temperatures (283.15 to 303.15) K

Abstract

Viscosities and densities of poly(vinyl chloride) + tetrahydrofuran (PVC/THF) mixtures were measured at several temperatures between (283.15 and 303.15) K. The measured densities were satisfactorily correlated by a simple first-order polynomial with respect to PVC concentration. The average molecular weight of PVC is determined by measuring the specific viscosity of the PVC/THF mixtures. The obtained viscosity results are correlated by a new modified Eyring’s viscosity model. The adjustment parameters are determined and presented. The comparison of correlated and experimental results indicated the applicability of the proposed model for viscosity prediction of (PVC/THF) mixtures.