Self-assembled polyaniline 12-tungstophosphate micro/nanostructures
Само за регистроване кориснике
2010
Аутори
Ćirić-Marjanović, GordanaHolclajtner-Antunović, Ivanka
Mentus, Slavko V.
Bajuk-Bogdanović, Danica
Jesic, Dragana
Manojlović, Dragan D.
Trifunović, Snežana S.
Stejskal, Jaroslav
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Polyaniline (PANI) micro/nanostructures were synthesized by the external-template-free oxidative polymerization of aniline in aqueous solution of 12-tungstophosphoric acid (WPA), using ammonium peroxydisulfate (APS) as an oxidant and starting the oxidation of aniline from slightly acidic media (pH 5.4-5.9). The effect of the initial weight ratio of WPA to aniline on molecular structure, morphology, and physicochemical properties of polyaniline 12-tungstophosphate (PANI-WPA) was investigated by FTIR, Raman and inductively coupled plasma optical emission (ICP-OES) spectroscopies, elemental analysis, X-ray powder diffraction (XRPD), scanning and transmission electron microscopies (SEM and TEM), thermogravimetric analysis (TGA), differential thermal analysis (DTA), and conductivity measurements. The morphological change of polymerization products during a single polymerization process, from non-conducting submicro-/microspherical oligoaniline intermediates to semiconducting PANI-WPA consis...ted of self-assembled nanotubes and/or nanorods co-existing with submicro-/microspheres, has been revealed by SEM and TEM. The average diameter of nanorods in PANI-WPA samples decreased with increasing the initial WPA/aniline weight ratio. The incorporation of 12-tungstophosphate counter-ions into PANI matrix has been proved by FTIR. Raman and ICP-OES spectroscopies, TGA and DTA analysis. Electrical conductivity of PANI-WPA increased in the range (2.5-5.3) x 10(-3) S cm(-1) with the increase of the initial WPA/aniline weight ratio. The presence of branched structures and phenazine units besides the ordinary paramagnetic and diamagnetic emeraldine salt structural features in PANI-WPA was proved by FTIR and Raman spectroscopies. (C) 2010 Elsevier B.V. All rights reserved.
Кључне речи:
Polyaniline / 12-Tungstophosphoric acid / Nanorods / Nanotubes / Submicrospheres / MicrospheresИзвор:
Synthetic Metals, 2010, 160, 13-14, 1463-1473Издавач:
- Elsevier Science Sa, Lausanne
Финансирање / пројекти:
- Структура, термодинамичке и електрохемијске особине материјала за конверзију енергије и нове технологије (RS-MESTD-MPN2006-2010-142047)
- Czech Grant Agency [202/09/1626]
DOI: 10.1016/j.synthmet.2010.04.025
ISSN: 0379-6779
WoS: 000280381600017
Scopus: 2-s2.0-77953914807
Колекције
Институција/група
Hemijski fakultet / Faculty of ChemistryTY - JOUR AU - Ćirić-Marjanović, Gordana AU - Holclajtner-Antunović, Ivanka AU - Mentus, Slavko V. AU - Bajuk-Bogdanović, Danica AU - Jesic, Dragana AU - Manojlović, Dragan D. AU - Trifunović, Snežana S. AU - Stejskal, Jaroslav PY - 2010 UR - https://cherry.chem.bg.ac.rs/handle/123456789/1096 AB - Polyaniline (PANI) micro/nanostructures were synthesized by the external-template-free oxidative polymerization of aniline in aqueous solution of 12-tungstophosphoric acid (WPA), using ammonium peroxydisulfate (APS) as an oxidant and starting the oxidation of aniline from slightly acidic media (pH 5.4-5.9). The effect of the initial weight ratio of WPA to aniline on molecular structure, morphology, and physicochemical properties of polyaniline 12-tungstophosphate (PANI-WPA) was investigated by FTIR, Raman and inductively coupled plasma optical emission (ICP-OES) spectroscopies, elemental analysis, X-ray powder diffraction (XRPD), scanning and transmission electron microscopies (SEM and TEM), thermogravimetric analysis (TGA), differential thermal analysis (DTA), and conductivity measurements. The morphological change of polymerization products during a single polymerization process, from non-conducting submicro-/microspherical oligoaniline intermediates to semiconducting PANI-WPA consisted of self-assembled nanotubes and/or nanorods co-existing with submicro-/microspheres, has been revealed by SEM and TEM. The average diameter of nanorods in PANI-WPA samples decreased with increasing the initial WPA/aniline weight ratio. The incorporation of 12-tungstophosphate counter-ions into PANI matrix has been proved by FTIR. Raman and ICP-OES spectroscopies, TGA and DTA analysis. Electrical conductivity of PANI-WPA increased in the range (2.5-5.3) x 10(-3) S cm(-1) with the increase of the initial WPA/aniline weight ratio. The presence of branched structures and phenazine units besides the ordinary paramagnetic and diamagnetic emeraldine salt structural features in PANI-WPA was proved by FTIR and Raman spectroscopies. (C) 2010 Elsevier B.V. All rights reserved. PB - Elsevier Science Sa, Lausanne T2 - Synthetic Metals T1 - Self-assembled polyaniline 12-tungstophosphate micro/nanostructures VL - 160 IS - 13-14 SP - 1463 EP - 1473 DO - 10.1016/j.synthmet.2010.04.025 ER -
@article{ author = "Ćirić-Marjanović, Gordana and Holclajtner-Antunović, Ivanka and Mentus, Slavko V. and Bajuk-Bogdanović, Danica and Jesic, Dragana and Manojlović, Dragan D. and Trifunović, Snežana S. and Stejskal, Jaroslav", year = "2010", abstract = "Polyaniline (PANI) micro/nanostructures were synthesized by the external-template-free oxidative polymerization of aniline in aqueous solution of 12-tungstophosphoric acid (WPA), using ammonium peroxydisulfate (APS) as an oxidant and starting the oxidation of aniline from slightly acidic media (pH 5.4-5.9). The effect of the initial weight ratio of WPA to aniline on molecular structure, morphology, and physicochemical properties of polyaniline 12-tungstophosphate (PANI-WPA) was investigated by FTIR, Raman and inductively coupled plasma optical emission (ICP-OES) spectroscopies, elemental analysis, X-ray powder diffraction (XRPD), scanning and transmission electron microscopies (SEM and TEM), thermogravimetric analysis (TGA), differential thermal analysis (DTA), and conductivity measurements. The morphological change of polymerization products during a single polymerization process, from non-conducting submicro-/microspherical oligoaniline intermediates to semiconducting PANI-WPA consisted of self-assembled nanotubes and/or nanorods co-existing with submicro-/microspheres, has been revealed by SEM and TEM. The average diameter of nanorods in PANI-WPA samples decreased with increasing the initial WPA/aniline weight ratio. The incorporation of 12-tungstophosphate counter-ions into PANI matrix has been proved by FTIR. Raman and ICP-OES spectroscopies, TGA and DTA analysis. Electrical conductivity of PANI-WPA increased in the range (2.5-5.3) x 10(-3) S cm(-1) with the increase of the initial WPA/aniline weight ratio. The presence of branched structures and phenazine units besides the ordinary paramagnetic and diamagnetic emeraldine salt structural features in PANI-WPA was proved by FTIR and Raman spectroscopies. (C) 2010 Elsevier B.V. All rights reserved.", publisher = "Elsevier Science Sa, Lausanne", journal = "Synthetic Metals", title = "Self-assembled polyaniline 12-tungstophosphate micro/nanostructures", volume = "160", number = "13-14", pages = "1463-1473", doi = "10.1016/j.synthmet.2010.04.025" }
Ćirić-Marjanović, G., Holclajtner-Antunović, I., Mentus, S. V., Bajuk-Bogdanović, D., Jesic, D., Manojlović, D. D., Trifunović, S. S.,& Stejskal, J.. (2010). Self-assembled polyaniline 12-tungstophosphate micro/nanostructures. in Synthetic Metals Elsevier Science Sa, Lausanne., 160(13-14), 1463-1473. https://doi.org/10.1016/j.synthmet.2010.04.025
Ćirić-Marjanović G, Holclajtner-Antunović I, Mentus SV, Bajuk-Bogdanović D, Jesic D, Manojlović DD, Trifunović SS, Stejskal J. Self-assembled polyaniline 12-tungstophosphate micro/nanostructures. in Synthetic Metals. 2010;160(13-14):1463-1473. doi:10.1016/j.synthmet.2010.04.025 .
Ćirić-Marjanović, Gordana, Holclajtner-Antunović, Ivanka, Mentus, Slavko V., Bajuk-Bogdanović, Danica, Jesic, Dragana, Manojlović, Dragan D., Trifunović, Snežana S., Stejskal, Jaroslav, "Self-assembled polyaniline 12-tungstophosphate micro/nanostructures" in Synthetic Metals, 160, no. 13-14 (2010):1463-1473, https://doi.org/10.1016/j.synthmet.2010.04.025 . .