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3,5-Dinitrosalicylic acid-assisted synthesis of self-assembled polyaniline nanorods

Authorized Users Only
2010
Authors
Janošević, Aleksandra
Ćirić-Marjanović, Gordana
Marjanović, Budimir
Trchova, Miroslava
Stejskal, Jaroslav
Article (Published version)
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Abstract
Self-assembled polyaniline nanorods were synthesized by the oxidation of aniline with ammonium peroxydisulfate in an aqueous solution in the presence of 3,5-dinitrosalicylic acid, using the template-free falling-pH method. The effects of the mole ratio of 3,5-dinitrosalicylic acid to aniline, i.e., of starting pH, monomer concentration, and reaction time on the yield of polymerization, molecular-weight distribution, molecular structure, morphology, and conductivity of the prepared polyanilines have been studied by gelpermeation chromatography. elemental analysis, FTIR and Raman spectroscopies, scanning and transmission electron microscopies, and conductivity measurements. The weight-average molecular weights and polydispersity index were in the range 36,400-54,900 and 3.7-7.6, respectively. Synthesized polyaniline nanorods have a diameter of 25-280 nm and a length of 0.2-1.31 mu m, and conductivities in the range (1.2-4.6) x 10(-2) S cm(-1). The formation mechanism of self-assembled po...lyaniline nanorods has been discussed.

Keywords:
FTIR spectroscopy / Nanorods / Polyaniline / Raman spectroscopy / SEM / TEM
Source:
Materials Letters, 2010, 64, 21, 2337-2340
Publisher:
  • Elsevier Science BV, Amsterdam
Projects:
  • Struktura, termodinamičke i elektrohemijske osobine materijala za konverziju energije i nove tehnologije (RS-142047)

DOI: 10.1016/j.matlet.2010.07.041

ISSN: 0167-577X

WoS: 000282907700019

Scopus: 2-s2.0-77955671517
[ Google Scholar ]
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URI
http://farfar.pharmacy.bg.ac.rs/handle/123456789/1361
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  • Radovi istraživača / Researchers’ publications
Institution
Pharmacy

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