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Characterization of terpolymers containing 1,2,4‐oxadiazolic pendant groups with potential application as workover fluids
Author(s) -
Vega Isabel,
Lamanna Melisa,
Fissore Eliana,
D'Accorso Norma,
Rojas Ana M.
Publication year - 2010
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.32505
Subject(s) - polyacrylonitrile , thermal stability , rheology , polymer chemistry , materials science , polymer , aqueous solution , viscoelasticity , chemical engineering , fourier transform infrared spectroscopy , chemical modification , polymer science , chemistry , organic chemistry , composite material , engineering
Presence of planar, bulky heterocyclic pendant groups, attached to polymer chains, alters the thermal properties and, once gelled, they modify their rheological properties as well. The authors report generation of stiff gels coming from terpolymers containing 1,2,4‐oxadiazolic pendant groups, obtained by chemical modification of commercial polyacrylonitrile. The gels formed in basic aqueous solutions were compared and the effect of substituents linked to the heterocycles on thermal stability and viscoelastic properties was also analyzed. The structural modifications were followed by FTIR. The potential use of these terpolymers as workover fluids is discussed. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011