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Synthesis and characterization of dual‐responsive micrometer‐sized core‐shell composite polymer particles
Author(s) -
Alam M. Ashraful,
Miah M. A. Jalil,
Ahmad Hasan
Publication year - 2008
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.993
Subject(s) - materials science , dispersion polymerization , polystyrene , polymer , copolymer , methacrylic acid , composite number , polymerization , chemical engineering , dispersion (optics) , polymer chemistry , core (optical fiber) , composite material , physics , optics , engineering
Dual‐responsive micrometer‐sized core‐shell composite polymer particles were prepared by dispersion polymerization followed by seeded copolymerization. Polystyrene (PS) particles prepared by dispersion polymerization were used as core particles. N‐isopropyl acrylamide (NIPAM) and methacrylic acid (MAA) were used to induce dual‐responsive that is thermo‐ and pH‐responsive properties in the shell layer of composite polymer particles, prepared by seeded copolymerization with PS core particles. Temperature‐ and pH‐dependent adsorption behaviors of some macromolecules on composite polymer particles indicate that produced composite polymer particles exhibit dual‐responsive surface properties. Copyright © 2007 John Wiley & Sons, Ltd.