Journal Article

·1993

Estimation of the equation of state exchange energy and entropy parameters of a polymer‐solvent pair by intrinsic viscosity measurements

Ferdane Yılmaz YTU , Bahatti̇n M. Baysal

Polymer International

Abstract

Abstract The intrinsic viscosity data of linear poly(4‐chlorostyrene) in n ‐propylbenzene and isopropylbenzene were used to estimate the equation of state exchange energy ( X 12 ) and entropy ( Q 12 ) parameters. The quantities estimated for X 12 were 6.7 and 8.1 J cm −3 and those of Q 12 were −0.069 and −0.063 J cm −3 deg −1 in n ‐propylbenzene and isopropylbenzene, respectively. The average values of the chain unperturbed dimension constant ( K o ) and the characteristic ratio ( C x ) were found to be 0.55 × 10 −3 dl mol 1/2 g −3/2 and 10.54, respectively, from the intrinsic viscosities measured at the corresponding θ‐temperatures.

Keywords

Intrinsic viscosity Thermodynamics Viscosity Polymer Solvent Entropy (arrow of time) Chemistry Analytical Chemistry (journal) Materials science Physics Chromatography Organic chemistry

Subject Areas

Thermodynamic properties of mixtures ·Fluid Flow and Transfer Processes ·Physical Sciences
Ionic liquids properties and applications ·Catalysis ·Physical Sciences
Chemical and Physical Properties in Aqueous Solutions ·Filtration and Separation ·Physical Sciences

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