Abstract
Results of a study are presented which show that two correlations of viscosity-concentration data are useful representations for data over wide ranges of mol. wt and up to at least moderately high concentrations for both good and fair solvents. Low mol. wt polymer solutions (below the critical entanglement mol. wt M//c) generally have higher viscosities than predicted by the correlations. One correlation is eta //s//p/c left bracket eta right bracket versus k prime left bracket eta right bracket c, where eta //s//p is specific viscosity, c is polymer concentration, left bracket eta right bracket is intrinsic viscosity, and k prime is the Huggins constant. A standard curve for good solvent systems has been defined up to k prime left bracket eta right bracket c approximately equals 3. It can also be used for fair solvents up to k prime left bracket eta right bracket c approximately equals 1. 25; low estimates are obtained at higher values. A simpler and more useful correlation is eta //R versus c left bracket eta right bracket , where eta //R is relative viscosity.
Recommended Citation
J. L. Zakin et al., "GENERALIZED CORRELATIONS FOR MOLECULAR WEIGHT AND CONCENTRATION DEPENDENCE OF ZERO-SHEAR VISCOSITY OF HIGH POLYMER SOLUTIONS.," J Polym Sci Part A-2 Polym Phys, vol. 14, no. 2, pp. 299 - 308, Wiley, Jan 1976.
The definitive version is available at https://doi.org/10.1002/pol.1976.180140209
Department(s)
Chemical and Biochemical Engineering
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Full Access
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
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© 2023 Wiley, All rights reserved.
Publication Date
01 Jan 1976
