Analysis of proton-conducting organic-inorganic hybrid materials based on sulphonated poly(ether ether ketone) and phosphotungstic acid via ASAXS and WAXS

被引：4

作者：

Prado, Luis A. S. de A. ^{[1
]}

Ponce, Mariela L. ^{[2
]}

Goerigk, Guenter ^{[3
,4
]}

Funari, Sergio S. ^{[5
]}

Garamus, Vasyl M. ^{[2
]}

Willumeit, Regine ^{[2
]}

Schulte, Karl ^{[1
]}

Nunes, Suzana P. ^{[2
]}

机构：

[1] Tech Univ Hamburg, Inst Kunststoffe & Verbundwerkstoffe, D-21073 Hamburg, Germany

[2] Geesthact GmbH, GKSS Res Ctr, D-21502 Geesthacht, Germany

[3] Res Ctr Julich, Inst Solid State Res, D-52425 Julich, Germany

[4] Tech Univ Munich, JCNS FRMII, D-85747 Garching, Germany

[5] DESY, HASYLAB, D-22067 Hamburg, Germany

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2009年 / 355卷 / 01期

关键词：

Diffraction and scattering measurements; Nanoparticles; colloids and quantum structures; Polymers and organics; Organic-inorganic hybrids; X-ray diffraction; X-RAY-SCATTERING; METHANOL FUEL-CELL; COMPOSITE MEMBRANES; POLYMER MEMBRANES; METAL;

D O I：

10.1016/j.jnoncrysol.2008.09.036

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In the present paper the distribution of phosphotungstic acid (PTA, H3PW12O40) dispersed in sulfonated poly(ether ether ketone), SPEEK, was investigated by Anomalous Small Angle X-ray scattering (ASAXS) and Wide-Angle X-Ray Scattering WAXS techniques. The hydrolysis and condensation of 3-aminopropyl-trimethoxysilane or zirconium tetrapropylate in this polymeric matrix were used to produce poly(3-aminopropyl silsesquioxane) or ZrO2, as nanofilters. Contrary to previous results reported for membranes containing phosphomolybdic acid, the PTA could be completely dissolved in the SPEEK matrix. The applicability of the Guinier approximation for the SPEEK/PTA membrane confirmed that the PTA was dispersed as isolated nanoparticles. The incorporation of poly(3-aminopropyl silsesquioxane) in the SPEEK/PTA system caused the agglomeration of the heteropolyacid as 30 nm large particles. The ZrO2 had little effect on the distribution of PTA in the SPEEK matrix. On the other hand, no crystallization of the heteropolyacid was observed in the membranes. (C) 2008 Published by Elsevier B.V.

引用

页码：6 / 11

页数：6

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