Fabrication of photo-crosslinkable polymer/silica sol-gel hybrid thin films as versatile barrier films

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Title
Fabrication of photo-crosslinkable polymer/silica sol-gel hybrid thin films as versatile barrier films
Author(s)
J Bae; Jiyeon Lee; Chul Soon Park; Oh Seok KwonChang-Soo Lee
Bibliographic Citation
Journal of Industrial and Engineering Chemistry, vol. 38, pp. 61-66
Publication Year
2016
Abstract
Versatile films composed of a photo-crosslinkable thiol-ene (ThE)/silica sol-gel hybrid nanocomposite were prepared using a two-step process. Tetrafunctional thiol and triene monomers were employed as precursors to generate a matrix polymer. Tetraethyl orthosilicate (TEOS) was incorporated as the silica source for the sol-gel process. A two-step process, sol-gel reaction followed by photocuring, resulted in uniform and transparent hybrid thin films. The formation of homogeneous, mechanically stable, and optically transparent films was confirmed and the films were characterized by differential scanning calorimetry (DSC) and X-ray diffraction (XRD) analyses. The morphological properties of the films were assessed by transmission electron microscopy (TEM) and atomic force microscopy (AFM). The thermal expansion of the obtained membrane films was examined by thermomechanical analysis (TMA). In addition, optical transmission and gas permeation were assessed for high-performance applications.
Keyword
HybridPhoto-crosslinkSilicaSol-gelThiol-ene
ISSN
1226-086X
Publisher
Elsevier
DOI
http://dx.doi.org/10.1016/j.jiec.2016.04.007
Type
Article
Appears in Collections:
Division of Research on National Challenges > Infectious Disease Research Center > 1. Journal Articles
Division of Research on National Challenges > Bionanotechnology Research Center > 1. Journal Articles
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