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Dissolution rates of poly(methyl methacrylate) in mixtures of nonsolvents
Author(s) -
Groele R. J.,
Krasicky P. D.,
Chun S.W.,
Sullivan J.,
Rodriguez F.
Publication year - 1991
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.1991.070420102
Subject(s) - acetonitrile , dissolution , methyl methacrylate , solvent , methanol , butanol , poly(methyl methacrylate) , materials science , polymer , mass fraction , methacrylate , polymer chemistry , chemistry , analytical chemistry (journal) , organic chemistry , ethanol , monomer
As predicted by thermodynamic studies of polymer conformation, high molecular weight poly(methyl methacrylate) (PMMA) dissolves cleanly, and at a constant rate, in a 7 : 3 mixture of 1‐butanol and acetonitrile, although neither liquid is a solvent for PMMA by itself. Mixtures of other alcohols with acetonitrile also dissolve PMMA. When mixtures with the same fraction of acetonitrile are compared, methanol dissolves PMMA almost twice as fast, ethanol and hexanol at about the same rate, and 2‐propanol somewhat more slowly than the 1‐butanol mixture with acetonitrile. The measurements of dissolution rate were made using a laser interferometer at 20°C.