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Vapour‐liquid equilibria of concentrated poly(styrene‐ co ‐butadiene) and poly(styrene‐ co ‐acrylonitrile) solutions
Author(s) -
Wohlfarth Christian
Publication year - 1997
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1997.021980904
Subject(s) - acrylonitrile , styrene , inverse gas chromatography , styrene butadiene , polymer chemistry , sorption , chemistry , dilution , monomer , acrylonitrile butadiene styrene , thermodynamics , materials science , copolymer , polymer , organic chemistry , adsorption , physics
Isopiestic vapor sorption measurements were carried out for concentrated solutions of poly(styrene‐ co ‐butadiene) (SBR) and poly(styrene‐ co ‐acrylonitrile) (SAN) in a number of aromatic solvents in the temperature range of 343 to 398 K. Henry constants were determined by means of inverse gas‐liquid chromatography in the temperature range of 373 K (SBR) or 423 K (SAN) to 473 K, to obtain additional data at infinite dilution for the solvents, and for two of the monomers, styrene and 1,3‐butadiene, in SBR. The chain‐of‐rotators (COR) equation of state model was used to calculate the thermodynamic quantities applying a group‐contribution approach. In general, good agreement is observed between experimental and calculated results.