TY - JOUR
T1 - Preparation and properties of polyaniline doped with poly(thiophenylenesulfonic acid)
AU - Miyatake, Kenji
AU - Cho, Jun Sang
AU - Takeoka, Shinji
AU - Tsuchida, Eishun
PY - 1999/1/1
Y1 - 1999/1/1
N2 - A novel polyaromatic acid, poly(thiophenylenesulfonic acid) (PTPSA), prepared from a soluble precursor of poly(arylenesulfonium salt) was employed as a dopant for polyaniline (PAn). The electro-oxidative polymerization of aniline in PTPSA aqueous solution gives an electroactive PAn/PTPSA composite with three redox couples at 0.16, 0.53, and 0.71V (vs. SCE). Composites of different molar ratio ([SO3H]/[An] = 0.10, 0.21, 0.42, 0.50, 0.83, 1.67) was prepared in order to confirm the transformation from the emeraldine base to its PTPSA salt, where a quantitative doping reaction was observed by means of UV-VIS and IR measurements. The thermogravimetric analysis revealed that the composites do not decompose up to 200°C in nitrogen atmosphere. The composite ([SO3H]/[An] = 0.50) shows an electrical conductivity of 1.5 S · cm-1 at 30°C and 3.0 × 10-1 S · cm-1 at 170°C. The composite retains its conductivity after heating at 150°C for 24 h.
AB - A novel polyaromatic acid, poly(thiophenylenesulfonic acid) (PTPSA), prepared from a soluble precursor of poly(arylenesulfonium salt) was employed as a dopant for polyaniline (PAn). The electro-oxidative polymerization of aniline in PTPSA aqueous solution gives an electroactive PAn/PTPSA composite with three redox couples at 0.16, 0.53, and 0.71V (vs. SCE). Composites of different molar ratio ([SO3H]/[An] = 0.10, 0.21, 0.42, 0.50, 0.83, 1.67) was prepared in order to confirm the transformation from the emeraldine base to its PTPSA salt, where a quantitative doping reaction was observed by means of UV-VIS and IR measurements. The thermogravimetric analysis revealed that the composites do not decompose up to 200°C in nitrogen atmosphere. The composite ([SO3H]/[An] = 0.50) shows an electrical conductivity of 1.5 S · cm-1 at 30°C and 3.0 × 10-1 S · cm-1 at 170°C. The composite retains its conductivity after heating at 150°C for 24 h.
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U2 - 10.1002/(SICI)1521-3935(19991201)200:12<2597::AID-MACP2597>3.0.CO;2-O
DO - 10.1002/(SICI)1521-3935(19991201)200:12<2597::AID-MACP2597>3.0.CO;2-O
M3 - Article
AN - SCOPUS:0000712729
VL - 200
SP - 2597
EP - 2601
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
SN - 1022-1352
IS - 12
ER -