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Fabrication of a porous polyimide membrane using a silicon nanowire array as a template

Authors
Kim, WoongLee, Myung-Ki
Issue Date
30-4월-2009
Publisher
ELSEVIER SCIENCE BV
Keywords
Nanomaterials; Polymers; Porosity; Membranes; Nanowires; Polyimide
Citation
MATERIALS LETTERS, v.63, no.11, pp.933 - 936
Indexed
SCIE
SCOPUS
Journal Title
MATERIALS LETTERS
Volume
63
Number
11
Start Page
933
End Page
936
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/120197
DOI
10.1016/j.matlet.2009.01.060
ISSN
0167-577X
Abstract
We demonstrate that a porous polyimide membrane can be fabricated by curing liquid polyimide on a vertically oriented silicon nanowire array and selectively etching away the nanowire-array-template using xenon difluoride (XeF(2)). Pore size and density using the described technique are controllable. The former is dependent on nanowire diameter and the duration of etching, whereas pore density is determined by silicon nanowire density. We believe that the described porous membrane fabrication method can be applied to various polymer and nanowire systems. (C) 2009 Elsevier B.V. All rights reserved.
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공과대학 (신소재공학부)
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