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Polymer–polymer interaction, in the presence of a solvent as measured by viscometry
Author(s) -
Gómez Clara M,
Porcar Iolanda,
Recalde Ileana,
Campos Agustín
Publication year - 2002
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.802
Subject(s) - viscometer , polymer , flory–huggins solution theory , solvent , molar mass , ternary operation , intrinsic viscosity , compatibility (geochemistry) , materials science , mass fraction , polymer chemistry , thermodynamics , relative viscosity , viscosity , chemical engineering , chemistry , composite material , organic chemistry , physics , computer science , programming language , engineering
Dilute solution viscometry experiments have been carried out in five ternary polymer systems solvent(1)/polymer(2)/polymer(3). Values of the specific viscosity of polymer (3) in a ‘binary solvent’ formed by polymer(2) + solvent(1) have been used to determine the compatibility of the polymer blends. Krigbaum and Wall formalism has been used to predict compatibility which relies on an interaction parameter $b_{23}^{(1)}$ that depends on the concentration, weight fraction and molar mass of each polymer. To reduce the dependences and to clarify the criterion of compatibility, a parameter $b_{23}^{(2)}$ independent of polymer (3) composition and molar mass has been deduced. This parameter shows the same behaviour with polymer(2) concentration as the Stockmayer–Fixman parameter B . © 2001 Society of Chemical Industry