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Concentration, temperature and deformation effects in concentrated polymer solutions with volatile solvents
Author(s) -
Foster R. W.,
Lindt J. T.
Publication year - 1987
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760271705
Subject(s) - polystyrene , materials science , viscometer , polymer , ethylbenzene , rheology , shear rate , shear (geology) , atmospheric temperature range , thermodynamics , composite material , viscosity , range (aeronautics) , polymer chemistry , organic chemistry , toluene , chemistry , physics
A novel high pressure polymer solution viscometer has been experimentally evaluated using the polystyrene/ethylbenzene system. The polymer solutions range in concentration from 60 weight percent polystyrene to the pure melt. The overall temperature range is 132°C to 240°C. The shear rates range from roughly 5 s −1 to 2000 s −1 . It has been concluded that the present method is useful in determining the shear dependent behavior of these volatile solutions, The shear dependent nature of this system is consistent with accepted non‐Newtonian viscosity theory.