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Polymer particles with controllable and complex structures for high immobilization of noble-metal nanoparticles

Authors
Kim, Da InPark, Ju HyangSeo, HojunHong, Sang GiKim, Hye JiAhn, HyungjuKim, JongbokMoon, Geon DaeHyun, Dong Choon
Issue Date
25-Feb-2020
Publisher
ELSEVIER SCIENCE INC
Keywords
Polymer particle; Complex-structured colloid; Phase separation; Noble-metal nanoparticle; Large surface area
Citation
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.82, pp.439 - 447
Journal Title
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume
82
Start Page
439
End Page
447
URI
https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/97
DOI
10.1016/j.jiec.2019.11.008
ISSN
1226-086X
Abstract
This work demonstrates the fabrication of cationic polymer particles with controllable and complex structures for the high immobilization of noble-metal nanoparticles (NPs). The fabrication involves the use of a cationic extra monomer to synthesize polystyrene (PS) solid spheres with cationic character, followed by their transformation into complex-structured particles via the phase separation route in a seeded dispersion polymerization. Control of the phase separation enables the formation of PS particles with cage- and bowl-like shapes as well as hollow structures. The large surface areas of the complex-structured particles, as theoretically calculated using simple models, and the electrostatic attraction between them and the negatively charged noble-metal NPs, as experimentally observed, allow the high immobilization of noble-metal NPs onto their surfaces. (C) 2019 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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KIM, JONG BOK
신소재공학부
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