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Three-dimensional, high-porosity conducting skeletal structure from biodegradable microparticles with vapor-phase polymerized conformal surface layer

Title
Three-dimensional, high-porosity conducting skeletal structure from biodegradable microparticles with vapor-phase polymerized conformal surface layer
Author
조국영
Keywords
Conformal coating; Conducting porous structure; Vapor-phase polymerization; PEDOT FILMS; DEPOSITION; COMPOSITES; EMULSION; THIN
Issue Date
2016-10
Publisher
ELSEVIER SCI LTD
Citation
POLYMER, v. 102, Page. 127-135
Abstract
Three dimensional (3D) electric conducting porous structures are a promising platform that could be utilized in emerging 3D structural electronics, energy storage systems, and biomedical applications. A poly(3,4-ethylenedioxythiophene)/silica (PEDOT/SiO2) composite with foam-like conducting open skeletal structures and pore sizes exceeding 100 mm is presented. A two-step procedure was used to prepare this functional porous structure. First, a conformal coating layer was synthesized via vapor-phase polymerization onto a randomly sized biodegradable microparticle assembly. Vapor-phase polymerization allowed for facile coating of the nanoscale layer in a relatively short processing time (30 min). At this stage, non-invasive chemical modification can be also accomplished on the surface of microparticles that have complex surface morphology. Secondly, biodegradable microparticles were selectively removed to form a high-porosity skeletal conducting structure. The composite demonstrated structural integrity despite an unusually high porosity of greater than 96%, which was confirmed through micro-computed tomography (CT). The results show that this foam-like conducting open skeletal structure of the PEDOT/SiO2 composite is a good candidate for new applications. (C) 2016 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0032386116307972https://repository.hanyang.ac.kr/handle/20.500.11754/70370
ISSN
0032-3861; 1873-2291
DOI
10.1016/j.polymer.2016.09.008
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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