Mixed conductive membrane: Aniline polymerization in an acid SPEEK matrix

被引:23
作者
Roeder, Jerusa
Zucolotto, Valtencir
Shishatskiy, Sergey
Bertolino, Jose R.
Nunes, Suzana P.
Pires, Alfredo T. N. [1 ]
机构
[1] Univ Fed Santa Catarina, Dept Quim, POLIMAT, BR-88040900 Florianopolis, SC, Brazil
[2] Univ Nacl Estadual Sao Paulo, Sao Carlos, SP, Brazil
[3] GKSS Forschungszentrum Geesthacht GmbH, D-2054 Geesthacht, Germany
关键词
mixed conduction; polymeric membrane; interface layer; SPEEK; PANI;
D O I
10.1016/j.memsci.2005.11.037
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Mixed ion/electron conductive ceramic materials, like perovskite, have recently gained relevance due to their possible applications in membrane technology. This work describes the preparation and characterization of a mixed conductive membrane obtained via in situ polymerization of polyaniline (PANI) within a sulfortated poly(ether ether ketone) (SPEEK) matrix. Mixed conductive membranes of PANI/SPEEK obtained from an initial composition of 80wt.% SPEEK had an electronic conductivity of 1 x 10(-5) S cm(-1) and after a second doping with 1 mol L-1 HCI it increased to 4.9 x 10(-5) S cm(-1). The doping of PANI with SPEEK was evaluated by infrared spectroscopy, with intense broad bands at 1137 and 1157cm(-1). These bands were characteristic of the protonated imine structure of PANI, and also the reduction of quinoid units due to the interaction of the sulfonic groups of SPEEK with nitrogen atoms of PANI. The PANI doping efficiency with SPEEK, the conducting path formation at the percolation threshold and a good thermal stability of the system make it possible to obtain mixed conductive membranes. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:70 / 75
页数:6
相关论文
共 29 条
[1]   Polymeric proton conducting membranes for medium temperature fuel cells (110-160°C) [J].
Alberti, G ;
Casciola, M ;
Massinelli, L ;
Bauer, B .
JOURNAL OF MEMBRANE SCIENCE, 2001, 185 (01) :73-81
[2]   Studies on chemically synthesized soluble acrylic acid doped polyaniline [J].
Athawale, AA ;
Kulkarni, MV ;
Chabukswar, VV .
MATERIALS CHEMISTRY AND PHYSICS, 2002, 73 (01) :106-110
[3]   MIXED ELECTRONIC AND IONIC CONDUCTORS - A NEW ROUTE TO NAFION(R)-DOPED POLYANILINE [J].
BARTHET, C ;
GUGLIELMI, M .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1995, 388 (1-2) :35-44
[4]   Synthesis of alkyl and N-alkyl-substituted polyanilines -: A study on their spectral properties and thermal stability [J].
Cataldo, F ;
Maltese, P .
EUROPEAN POLYMER JOURNAL, 2002, 38 (09) :1791-1803
[5]  
FRITSCH D, COMMUNICATION
[6]   Polyaniline doped with macromolecular acids [J].
Geng, YH ;
Li, J ;
Jing, XB ;
Wang, FS .
SYNTHETIC METALS, 1997, 84 (1-3) :81-82
[7]   Highly conductive and thermally stable self-doping propylthiosulfonated polyanilines [J].
Han, CC ;
Lu, CH ;
Hong, SP ;
Yang, KF .
MACROMOLECULES, 2003, 36 (21) :7908-7915
[8]   Preparation and characterization of polyaniline nanoparticles synthesized from DBSA micellar solution [J].
Han, MG ;
Cho, SK ;
Oh, SG ;
Im, SS .
SYNTHETIC METALS, 2002, 126 (01) :53-60
[9]   Polyaniline-poly(2-acrylamido-2-methyl-1-propanosulfonic acid) composite thin films:: structure and properties [J].
Hechavarría, L ;
Hu, HL ;
Rincón, ME .
THIN SOLID FILMS, 2003, 441 (1-2) :56-62
[10]   Proton-conducting polymers derived from poly(ether-etherketone) and poly(4-phenoxybenzoyl-1,4-phenylene) [J].
Kobayashi, T ;
Rikukawa, M ;
Sanui, K ;
Ogata, N .
SOLID STATE IONICS, 1998, 106 (3-4) :219-225