Self-doping of polyaniline prepared with the FeCl3/H2O2 system and the origin of the Raman band of emeraldine salt at around 1375cm(-1)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10315450" target="_blank" >RIV/00216208:11310/15:10315450 - isvavai.cz</a>
Alternative codes found
RIV/61389013:_____/15:00450088
Result on the web
<a href="http://dx.doi.org/10.1002/pi.4983" target="_blank" >http://dx.doi.org/10.1002/pi.4983</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/pi.4983" target="_blank" >10.1002/pi.4983</a>

Result language
angličtina
Original language name
Self-doping of polyaniline prepared with the FeCl3/H2O2 system and the origin of the Raman band of emeraldine salt at around 1375cm(-1)
Original language description
Stepwise addition of H2O2 in small portions into the polymerization mixture reduces the number of defects in polyaniline (PANI) prepared with the Fe3+/H2O2 system, although it does not eliminate them completely. PANIs slightly self-doped with phenolic groups are thus obtained, which show conductivity from 2.65 to 0.38Scm(-1) as the total H2O2/aniline mole ratio is increased from 0.125 to 1.25. The conductivity shows a good correlation with the A(B)/A(900) UV-visible absorbance ratio of the PANI emeraldine salt form (PANI ES), much better than with the A(B)/A(Q) ratio of the corresponding emeraldine base form. This corresponds well with the assignment of the band at 900nm to polaronic transitions. Partial self-doping of PANIs with weakly acidic phenolicgroups allowed evidence to be obtained for the assignment of Raman bands at 1370cm(-1) and 734cm(-1) (for (exc) = 780nm) to vibrational modes of highly localized polarons. The presence of the band at 880cm(-1) in the IR spectra of these
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Project
<a href="/en/project/GAP205%2F12%2F0911" target="_blank" >GAP205/12/0911: Aniline oligomers and their role in the formation of polyaniline nanostructures –spectroscopic analysis</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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