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Swelling of poly(glycidyl methacrylate) gel particles by organic solvents
Author(s) -
Fukuda Takeshi,
Kohara Noriyuki,
Onogi Yoshihiko,
Inagaki Hiroshi
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.1991.070431207
Subject(s) - glycidyl methacrylate , swelling , polymer chemistry , hildebrand solubility parameter , epoxide , polymerization , solubility , materials science , polymer , methacrylate , formic acid , copolymer , chemistry , chemical engineering , organic chemistry , composite material , catalysis , engineering
Fine particles of poly(glycidyl methacrylate) (PGMA) were prepared by suspension polymerization and crosslinked via the ring‐opening reaction of the epoxide group with formic acid. A fraction of the spherical gel particles averaging about 70°m in diameter was examined under an optical microscope with its swelling behavior in a number of solvents. Equilibrium degrees of swelling were established with accuracy to show that this polymer gel has rather unusual affinities for solvents: (i) It is swollen (and, without the crosslinks, soluble in most cases) in many types of solvents, (ii) it cannot be represented by a single value of solubility parameter, and (iii) it is not swollen at all in water nor in aliphatic alcohols, in spite of the presence of hydroxy groups in the chain.