Swelling of poly(glycidyl methacrylate) gel particles by organic solvents

✍ Scribed by Takeshi Fukuda; Noriyuki Kohara; Yoshihiko Onogi; Hiroshi Inagaki

• Publisher: John Wiley and Sons
• Year: 1991
• Tongue: English
• Weight: 605 KB
• Volume: 43
• Category: Article
• ISSN: 0021-8995
• DOI: 10.1002/app.1991.070431207

✦ Synopsis

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 pm in diameter was examined under a n 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 g * To whom correspondence should be addressed.