Home > Publications database > Anomalous Small-Angle X-Ray Scattering Characterization of Composites Based on Sulfonated Poly(ether ether ketone), Zirconium Phosphates, and Zirconium Oxide > print

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005     20240529111504.0
024 7 _ |2 DOI
|a 10.1002/polb.10764
024 7 _ |2 WOS
|a WOS:000188196800020
037 _ _ |a PreJuSER-34058
041 _ _ |a eng
082 _ _ |a 530
084 _ _ |2 WoS
|a Polymer Science
100 1 _ |a Prado, L.
|b 0
|0 P:(DE-HGF)0
245 _ _ |a Anomalous Small-Angle X-Ray Scattering Characterization of Composites Based on Sulfonated Poly(ether ether ketone), Zirconium Phosphates, and Zirconium Oxide
260 _ _ |a Bognor Regis [u.a.]
|b Wiley
|c 2003
300 _ _ |a 567 - 575
336 7 _ |a Journal Article
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336 7 _ |a Journal Article
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336 7 _ |a ARTICLE
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336 7 _ |a JOURNAL_ARTICLE
|2 ORCID
336 7 _ |a article
|2 DRIVER
440 _ 0 |a Journal of Polymer Science B - Polymer Physics
|x 0887-6266
|0 8821
|v 42
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a The morphology and distribution of zirconium oxide and zirconium phosphates in a matrix of sulfonated poly(ether ether ketone) (SPEEK) were investigated with anomalous small-angle X-ray scattering (ASAXS) and electron microscopy. ASAXS revealed that ZrO2 was distributed in the SPEEK matrix in the form of nanoparticles smaller than 13 Angstrom. A decrease in the conductivity suggested that the sulfonic groups were bound to the zirconium oxo species at the particle surface. Furthermore, two kinds of membranes containing zirconium phosphate were investigated. In one case, the phosphate was directly dispersed in the polymer solution for the casting of the membrane. In the other case, the phosphate was previously treated with n-propyl ammonium and polybenzimidazole. From ASAXS data, the fractal dimension could be estimated. Mass-fractal behavior was confirmed for the SPEEK membrane containing previously exfoliated zirconium phosphate, with aggregates of 6.3-165 Angstrom. Surface-fractal behavior was detected for membranes with untreated phosphates, with aggregates of 6.4-185 Angstrom. The untreated phosphates caused an increase in the permeability, without changing the proton conductivity much. (C) 2003 Wiley Periodicals, Inc.
536 _ _ |a Kondensierte Materie
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653 2 0 |2 Author
|a anomalous small-angle X-ray scattering
653 2 0 |2 Author
|a composites
653 2 0 |2 Author
|a membranes
653 2 0 |2 Author
|a microstructure
700 1 _ |a Wittich, H.
|b 1
|0 P:(DE-HGF)0
700 1 _ |a Schulte, K.
|b 2
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700 1 _ |a Goerigk, G.
|b 3
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700 1 _ |a Garamus, V. M.
|b 4
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700 1 _ |a Willumeit, R.
|b 5
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700 1 _ |a Vetter, S.
|b 6
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700 1 _ |a Ruffmann, B.
|b 7
|0 P:(DE-HGF)0
700 1 _ |a Nunes, T.
|b 8
|0 P:(DE-HGF)0
773 _ _ |a 10.1002/polb.10764
|g Vol. 42, p. 567 - 575
|p 567 - 575
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|0 PERI:(DE-600)1473448-5
|t Journal of polymer science / B
|v 42
|y 2003
|x 0887-6266
856 7 _ |u http://dx.doi.org/10.1002/polb.10764
909 C O |o oai:juser.fz-juelich.de:34058
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