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Production of polymethylmethacrylate particles by dispersion polymerization in aqueous media with ceric ammonium nitrate
Author(s) -
Bulmuş Volga,
Tuncel Ali,
Pişkin Erhan
Publication year - 1996
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/(sici)1097-4628(19960502)60:5<697::aid-app6>3.0.co;2-l
Subject(s) - dispersion polymerization , ceric ammonium nitrate , monomer , polymerization , dispersion (optics) , polymer chemistry , azobisisobutyronitrile , particle size , materials science , chemical engineering , aqueous solution , chemistry , copolymer , organic chemistry , polymer , physics , optics , engineering
Polymethylmethacrylate particles with narrow size distributions with different sizes in the range of 1.25–4.58 μm were produced by dispersion polymerization of methylmethacrylate (MMA) in ethanol/water media, by using 2,2′‐azobisisobutyronitrile (AIBN) (as an initiator), (PVP) poly(vinyl pyrrolidone) (as a stabilizer), and ceric ammonium nitrate (CAN) (as a coinitiator and also as a costabilizer). Particle size was increased by increasing the initiator concentration and the ethanol: water ratio, and by decreasing the monomer: dispersion medium ratio and the PVP and CAN concentrations. The addition of CAN in the recipe of the MMA polymerization improved the monodispersity, and also increased the monomer conversion rate. © 1996 John Wiley & Sons, Inc.