PEDOT nanostructures synthesized in hexagonal mesophases

被引:64
|
作者
Ghosh, Srabanti [1 ]
Remita, Hynd [1 ]
Ramos, Laurence [2 ,3 ]
Dazzi, Alexandre [1 ]
Deniset-Besseau, Ariane [1 ]
Beaunier, Patricia [4 ]
Goubard, Fabrice [5 ]
Aubert, Pierre-Henri [5 ]
Brisset, Francois [6 ]
Remita, Samy [1 ,7 ]
机构
[1] Univ Paris 11, Lab Chim Phys, UMR CNRS 8000, F-91405 Orsay, France
[2] Univ Montpellier 2, Lab Charles Coulomb UMR 5221, F-34095 Montpellier, France
[3] CNRS, Lab Charles Coulomb UMR 5221, F-34095 Montpellier, France
[4] Univ Paris 06, UMR CNRS 7197, Lab React Surface, F-75006 Paris, France
[5] Univ Cergy Pontoise, LPPI, F-95031 Cergy Pontoise, France
[6] Univ Paris 11, ICMMO, UMR CNRS 8182, F-91405 Orsay, France
[7] CNAM, Conservatoire Natl Arts & Metiers, Ecole SITI, Dept CASER, F-75141 Paris 03, France
关键词
CONJUGATED POLYMERS; POLY(3,4-ETHYLENEDIOXYTHIOPHENE) FILMS; SEMICONDUCTING POLYMERS; INFRARED-SPECTROSCOPY; LIQUID-CRYSTALS; SOLAR-CELLS; PHASE; POLYMERIZATION; CONDUCTIVITY; STABILITY;
D O I
10.1039/c3nj01349a
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We describe a single step preparation of nanostructures of poly(3,4-ethylenedioxythiophene), PEDOT, in the hydrophobic domains of cationic surfactant-based hexagonal mesophases via chemical oxidative polymerization of EDOT monomers using FeCl3 as an oxidizing agent. After polymerization, the hexagonal structure of the mesophases is preserved as demonstrated by polarized light microscopy and X-ray scattering measurements. After extraction from mesophases, the chemical structure of PEDOT is confirmed by Fourier transform infrared spectroscopy. Moreover, PEDOT morphology is checked by transmission and scanning electron microscopies. PEDOT nanostructures with spindle-like or vesicle-like shapes are obtained depending on the experimental conditions. In the original method, high resolution atomic force microscopy, coupled with infrared nanospectroscopy, is used to probe the local chemical composition of PEDOT nanostructures. Finally, the as-prepared PEDOT polymers are characterized by both good thermal stability up to 200 degrees C and a relatively high conductivity value up to 0.4 S cm(-1) as determined by thermogravimetric analysis and four probe measurements respectively.
引用
收藏
页码:1106 / 1115
页数:10
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