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Solvent effect on the miscibility of polymer blends
Author(s) -
Bui Van Tam,
Baril Daniel,
Vu Thanh Long
Publication year - 1988
Publication title -
makromolekulare chemie. macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 0258-0322
DOI - 10.1002/masy.19880160119
Subject(s) - miscibility , tetrahydrofuran , polystyrene , thermogravimetric analysis , materials science , cyclohexane , polymer chemistry , polymer , differential scanning calorimetry , solvent , polymer blend , flory–huggins solution theory , methyl methacrylate , chemical engineering , copolymer , organic chemistry , thermodynamics , chemistry , composite material , physics , engineering
Starting from the Flory‐Huggins theory applied to a polymer/polymer/solvent solution, an expression has been derived showing the overall effect of solvent on the composition of the polymer blend in the final solid state. This expression has been experimentally verified by investigating the miscibility of two polymer blends: polystyrene/poly(α‐methylstyrene) cast from tetrahydrofuran and cyclohexane, and polystyrene/poly (methyl methacrylate) obtained from tetrahydrofuran and chloroform. Besides the usual differential scanning calorimetry technique, thermogravimetric analysis might be helpful for detecting the miscibility of polymer blends.