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A new analytical method to calculate intrinsic viscosity and viscosity constants of polymer–solvent systems
Author(s) -
Toti Udaya S.,
Amur Krishna S.,
Kariduraganavar Mahadevappa Y.,
Manjeshwar Lata S.,
Aralaguppi Mrityunjaya I.,
Aminabhavi Tejraj M.
Publication year - 2001
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.2243
Subject(s) - viscometer , viscosity , intrinsic viscosity , polystyrene , thermodynamics , chloroform , polymer , solvent , reduced viscosity , relative viscosity , least squares function approximation , constant (computer programming) , chemistry , materials science , analytical chemistry (journal) , mathematics , chromatography , organic chemistry , physics , computer science , statistics , estimator , programming language
Experimental viscosities were measured by Schott Gerate viscometer at 30 °C for polystyrene–chloroform and polycaprolactum–benzene systems. These data were analyzed by a newly developed analytical method to calculate intrinsic viscosity and viscosity constants. The analytical method was compared with the graphical as well as the least squares methods and the new analytical method is better than the graphical method because it avoids personal errors that might arise in reading the intercept and slope values from the reduced viscosity versus concentration plots. Furthermore, the analytical method is as effective as the least squares method, but provides better insights while choosing the experimental viscosity values. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 283–290, 2002