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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/8439

Title: Silica filled poly(4-methyl-2-pentyne) nanocomposite membranes: Similarities and differences with poly(1-trimethylsilyl-1-propyne)-silica systems
Authors: De Sitter, K
Andersson, A.
Leysen, R
Maurer, Frank H. J.
Vankelecom, IFJ
Issue Date: 2008
Citation: 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 in membrane structure was noticed, explaining the difference in membrane performance. (c) 2008 Elsevier B.V. All rights reserved.
Notes: Flemish Inst Technol Res VITO, B-2400 Mol, Belgium. Katholieke Univ Leuven, Fac Biosci Engn, Ctr Surface Chem & Catalysis COK, B-3001 Louvain, Belgium. Lund Univ, Lund Inst Technol, Dept Polymer & Mat Chem, SE-22100 Lund, Sweden. Hasselt Univ, Inst Mat Res, B-3590 Diepenbeek, Belgium. IMEC VZW, Div IMOMEC, B-3590 Diepenbeek, Belgium.
URI: http://hdl.handle.net/1942/8439
ISI #: 000258166700018
ISSN: 0376-7388
Category: A1
Type: Journal Contribution
Validation: ecoom, 2009
Appears in Collections: Research publications

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