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Surface modification of monodisperse‐crosslinked polymeric microspheres using a redox initiation system
Author(s) -
Jung MiOk,
Ryu JeeHyun,
Park JinGyu,
Jun JungBae,
Suh KyungDo
Publication year - 2006
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.23546
Subject(s) - dispersity , monomer , polymer chemistry , polymerization , materials science , surface modification , chemical engineering , ammonium persulfate , hydrolysis , redox , sulfuric acid , fourier transform infrared spectroscopy , chemistry , polymer , organic chemistry , composite material , engineering , metallurgy
The surface modification of monodisperse‐crosslinked polymeric microspheres was carried out by introducing hydroxyl groups on the surface and utilizing the redox initiation system. The emulsions of the second monomer mixture were swollen into the monodisperse PS seed particles. The hydroxyl groups were introduced by hydrolysis of the acetate groups on the surface of microspheres. Ceric ammonium sulfate in sulfuric acid solution was employed to graft the acrylic monomer onto the polymeric microspheres. The surface characteristics of the surface‐modified particles were confirmed by FTIR, SEM, and TGA measurements. From the FE‐TEM image, a uniform coating layer was confirmed on the surface of microsphere. In DSC analysis, only an exothermal peak appeared when high content of DVB was used in the seeded polymerization, while, T g s emerged after hydrolysis and graft polymerization using the low content of DVB in the second monomer. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 100: 1349–1356, 2006