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Synthesis of core–shell type microsphere with reactive seed microspheres
Author(s) -
Saito Reiko,
Ni Xiaoyu,
Ichimura Ayako,
Ishizu Koji
Publication year - 1998
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(19980711)69:2<211::aid-app1>3.0.co;2-q
Subject(s) - polyacrylamide , acrylamide , polymer chemistry , microsphere , aqueous suspension , chemical engineering , methyl methacrylate , materials science , aqueous solution , aqueous medium , irradiation , suspension (topology) , polymerization , monomer , chemistry , polymer , composite material , organic chemistry , physics , mathematics , homotopy , nuclear physics , pure mathematics , engineering
Monodispersed poly(methyl methacrylate) (PMMA) particles (seed microspheres) were synthesized with the living radical initiators, tetramethylthiuram disulfide, or p ‐xylene dimethyldithiocarbamate by suspension polymerization in water media with and without divinyl benzene as a crosslinker. Monodispersed spherical microspheres with PMMA core–polyacrylamide shells were synthesized by UV irradiation to the seed microsphere–acrylamide aqueous solution. The content and the molecular weight of the polyacrylamide shell chain were controlled by changing the acrylamide feed and irradiation time of the UV light. The microspheres became dispersible to water after the UV irradiation. © 1998 John Wiley & Sons, Inc. J Appl Polym Sci 69: 211–216, 1998