Publication: Viscous Behavior of PS, PP, and ABS in Terms of Temperature and Pressure-Dependent Hole Fraction
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Date
2010
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JOHN WILEY & SONS INC
Abstract
We have developed a zero-shear viscous model in terms of temperature- and pressure-dependent hole fraction computed from Simha-Somcynsky Hole Theory. This model successfully interprets the viscosity data of PS, PP, and ABS as a function of hole fraction for a broad range of temperature and pressure. We have also introduced and discussed a new term: Viscoholibility; the derivative of logarithm of viscosity with respect to hole fraction. When the hole fraction takes highest available value, the viscoholibility approaches asymptotically to a constant value by which the viscosity changes linearly with the hole fraction. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 117: 110-113,2010
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Keywords
zero-shear viscosity, free volume, hole fraction, Simha Somcynsky hole theory, equation of state, MOLECULAR-WEIGHT HYDROCARBONS, VACANCY BEHAVIOR, POLYMER MELTS, FREE-VOLUME, VISCOSITY, LINKING, THERMODYNAMICS