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Rheological properties of hydrolyzed polyacrylonitrile‐grafted cellulose
Author(s) -
CaoThi AT.,
Robertson A. A.
Publication year - 1982
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.1982.070270612
Subject(s) - polyacrylonitrile , rheology , materials science , cellulose , polyelectrolyte , polyacrylic acid , hydrolysis , polymer chemistry , copolymer , polyacrylamide , intrinsic viscosity , apparent viscosity , viscosity , shear rate , aqueous solution , chemical engineering , composite material , polymer , chemistry , organic chemistry , engineering
The rheological properties of aqueous dispersions of hydrolyzed polyacrylonitrile‐grafted cellulose (H‐CPAN) have been investigated. The experimental results are consistent with the idea that the elementary particle is a rigid cellulose protofibril stabilized in suspension by associated polyelectrolyte side chains (polyacrylamide–polyacrylic acid copolymer grafts). The behavior of intrinsic viscosity with electrolyte concentration, the concentration depependence and shear dependence of the viscosity and of the steady‐state and dynamic shear moduli are qualitatively explained on this basis.