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Control of polyaniline particle shapes
- Authors
- Jung, Woo-Hyuk; Lee, Young Moo; Jo, Nam-Ju; Lee, Jang-Oo
- Issue Date
- Jun-2008
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- conducting polymer; flake-like; needle-like; plate-like; polyaniline; rod-like; toluenesulfonic acid
- Citation
- MACROMOLECULAR CHEMISTRY AND PHYSICS, v.209, no.11, pp.1083 - 1093
- Indexed
- SCIE
SCOPUS
- Journal Title
- MACROMOLECULAR CHEMISTRY AND PHYSICS
- Volume
- 209
- Number
- 11
- Start Page
- 1083
- End Page
- 1093
- ISSN
- 1022-1352
- Abstract
- Needle-like poly(aniline p-toluenesulfonic acid) complex aggregates were synthesized by oxidative polymerization, yielding conductivities of up to 3 S . cm(-1) and maximum aspect ratios of 26. Rod-like aggregates as precursors to be developed into needle-like aggregates were obtained with 1 to 2 h APS addition time at 15 degrees C. Flake-like polyanilines were prepared at -2 or +20 degrees C with 1.9 to 2.5 h of APS addition time, giving aspect ratios of 2 to 10. Plate-like polyaniline aggregates emerged when xylene was added, and an optimum xylene concentration was 15 vol.-%, giving 1.3 S . cm(-1) conductivity. The polyanilines were characterized by optical microscopy, SEM and UV-vis/NIR spectroscopy.
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