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Silica filled poly(4-methyl-2-pentyne) nanocomposite membranes: Similarities and differences with poly(1-trimethylsilyl-1-propyne)-silica systems

De Sitter, Kristien; Andersson, Anna LU ; D'Haen, Jan; Leysen, Roger; Mullens, Steven; Maurer, Frans LU and Vankelecom, Ivo F. J. (2008) In Journal of Membrane Science 321(2). p.284-292
Abstract
The performance of poly(4-methyl-2-pentyne) (PMP)/silica nanocomposites was studied for membranes with a filler content between 10 and 40 wt%. An increase in permeability and a constant vapor selectivity were measured with increasing filler content. The constant selectivity was in contrast to earlier published results for silica filled poly(l-trimethylsilyl-l-propyne) (PTSMP) membranes. Therefore, a comparison between both materials was made. Free volume sizes and interstitial mesopore sizes were determined by use of positron annihilation lifetime spectroscopy (PALS) and image analysis was performed on transmission electron microscopy (TEM) pictures of both materials. Although both materials possessed interstitial mesopores, a difference... (More)
The performance of poly(4-methyl-2-pentyne) (PMP)/silica nanocomposites was studied for membranes with a filler content between 10 and 40 wt%. An increase in permeability and a constant vapor selectivity were measured with increasing filler content. The constant selectivity was in contrast to earlier published results for silica filled poly(l-trimethylsilyl-l-propyne) (PTSMP) membranes. Therefore, a comparison between both materials was made. Free volume sizes and interstitial mesopore sizes were determined by use of positron annihilation lifetime spectroscopy (PALS) and image analysis was performed on transmission electron microscopy (TEM) pictures of both materials. Although both materials possessed interstitial mesopores, a difference in membrane structure was noticed, explaining the difference in membrane performance. (c) 2008 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
mesopores, image analysis, positron annihilation, gas separation, free, volume
in
Journal of Membrane Science
volume
321
issue
2
pages
284 - 292
publisher
Elsevier
external identifiers
  • wos:000258166700018
  • scopus:46149108086
ISSN
0376-7388
DOI
10.1016/j.memsci.2008.05.005
language
English
LU publication?
yes
id
b401aa3b-ff2e-4db3-8d44-f2ac8d855d86 (old id 1253368)
date added to LUP
2008-10-31 08:17:24
date last changed
2017-06-04 04:05:28
@article{b401aa3b-ff2e-4db3-8d44-f2ac8d855d86,
  abstract     = {The performance of poly(4-methyl-2-pentyne) (PMP)/silica nanocomposites was studied for membranes with a filler content between 10 and 40 wt%. An increase in permeability and a constant vapor selectivity were measured with increasing filler content. The constant selectivity was in contrast to earlier published results for silica filled poly(l-trimethylsilyl-l-propyne) (PTSMP) membranes. Therefore, a comparison between both materials was made. Free volume sizes and interstitial mesopore sizes were determined by use of positron annihilation lifetime spectroscopy (PALS) and image analysis was performed on transmission electron microscopy (TEM) pictures of both materials. Although both materials possessed interstitial mesopores, a difference in membrane structure was noticed, explaining the difference in membrane performance. (c) 2008 Elsevier B.V. All rights reserved.},
  author       = {De Sitter, Kristien and Andersson, Anna and D'Haen, Jan and Leysen, Roger and Mullens, Steven and Maurer, Frans and Vankelecom, Ivo F. J.},
  issn         = {0376-7388},
  keyword      = {mesopores,image analysis,positron annihilation,gas separation,free,volume},
  language     = {eng},
  number       = {2},
  pages        = {284--292},
  publisher    = {Elsevier},
  series       = {Journal of Membrane Science},
  title        = {Silica filled poly(4-methyl-2-pentyne) nanocomposite membranes: Similarities and differences with poly(1-trimethylsilyl-1-propyne)-silica systems},
  url          = {http://dx.doi.org/10.1016/j.memsci.2008.05.005},
  volume       = {321},
  year         = {2008},
}