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Ultrasonic Breaking of Fibers and Microparticles into Mesoporous Particles with High Loading of Magnetic Nanoparticles
Author(s) -
Hyun Dong Choon,
Jo Eunmin,
Park Choo Jin,
Lim MinCheol,
Paik HyunJong,
Cho Eun Chul,
Kim YoungRok,
Jeong Unyong
Publication year - 2013
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201200223
Subject(s) - materials science , sonication , mesoporous material , polystyrene , nanoparticle , polymer , composite number , magnetic nanoparticles , microparticle , chemical engineering , ethylene oxide , fiber , composite material , nanotechnology , copolymer , catalysis , organic chemistry , chemistry , engineering
Abstract Herein, a facile method for the large‐scale production of mesoporous polymer/nanoparticle (NP) composites, with high‐loading‐efficiency of nanoparticles, is presented. The composite fibers and microparticles composed of polystyrene (PS), poly(ethylene oxide) (PEO), and Fe 2 O 3 NPs were obtained by electrojetting. After selectively dissolving the PEO phase, simple ultrasonication broke the porous fibers and the microparticles into numerous small mesoporous composite particles. For the breaking of the fibers and microparticles, the use of low‐molecular‐weight polymer was critical. As an example demonstration, we produced mesoporous PS particles with a large amount of magnetic NPs.