Premium
Phase equilibra of polystyrene/polybutadiene/tetrahydrofuran using gel permeation chromatography
Author(s) -
Narasimhan Venkataraman,
Lloyd Douglas R.,
Burns Charles M.
Publication year - 1979
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.1979.070230310
Subject(s) - binodal , tetrahydrofuran , gel permeation chromatography , polybutadiene , polystyrene , size exclusion chromatography , polymer chemistry , materials science , polymer , permeation , molar mass distribution , solvent , chromatography , phase (matter) , chemistry , copolymer , membrane , organic chemistry , composite material , phase diagram , biochemistry , enzyme
Gel permeation chromatography using sequential differential refractive index and ultraviolet detectors has been successfully used to give the compositional analysis of conjugate phases in the incompatible system of polystyrene and polybutadiene with tetrahydrofuran as solvent. Application of this method to equilibrated samples yields tie lines, binodal curves, and plait points. The effects of molecular weights and molecular weight ratios on the slopes of the tie lines, the location of the binodal curve, and the depletion of second polymers from phases are discussed.