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Surface characteristics of solvent‐cast polymers
Author(s) -
Schreiber H. P.,
Croucher M. D.
Publication year - 1980
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.1980.070250913
Subject(s) - polystyrene , inverse gas chromatography , materials science , copolymer , solvent , methyl methacrylate , polymer , styrene , surface tension , hildebrand solubility parameter , polymer chemistry , chemical engineering , penetration (warfare) , solvent effects , composite material , thermodynamics , chemistry , organic chemistry , physics , operations research , engineering
Films of poly(methyl methacrylate) (PMMA), polystyrene, and a styrene/acrylic terpolymer have been cast from solutions of varying thermodynamic quality and the film properties studied by inverse gas chromatography and by critical surface tension measurements. Surface properties of the non‐polar polystyrene were independent of solvent medium, but significant variations in these properties were observed in the case of PMMA and the terpolymer. Solvent balance also appeared to affect the bulk properties of the latter films, as judged by the penetration rates of interacting liquids. The observations indicate the feasibility of controlling film properties of the solid by the appropriate selection of solution media; a time‐dependent variation in solid properties is to be expected, however, as the film structure attains an equilibrium state.