Nanotubular polypyrrole: Reversibility of protonation/deprotonation cycles and long-term stability
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F19%3A00503665" target="_blank" >RIV/61389013:_____/19:00503665 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/19:10403931 RIV/60461373:22340/19:43919685
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S001430571930254X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S001430571930254X?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.eurpolymj.2019.03.037" target="_blank" >10.1016/j.eurpolymj.2019.03.037</a>
Alternative languages
Result language
angličtina
Original language name
Nanotubular polypyrrole: Reversibility of protonation/deprotonation cycles and long-term stability
Original language description
An alteration of electrical conductivity of the conducting polymers from a conducting to a non-conducting form and vice versa is a feature of the high importance. Here, the changes in conductivity of the polypyrrole nanotubes (PPy-NT) associated with a deprotonation/reprotonation in alkaline (various concentrations of ammonium or sodium hydroxide) or acidic (1 M hydrochloric or hydrobromic acid) solutions are presented. All experiments were followed by energy dispersive X-ray spectroscopy (EDX) elemental analyses and van der Pauw conductivity measurements. Extensive measurements of conductivity of samples during 2-years' timespan have also been made in order to determine the kinetics of natural ageing of the deprotonated/reprotonated PPy-NT. EDX measurements have allowed for a deeper insight into the process of the deprotonation/reprotonation of PPy-NT, which is generally characterized by the exchange of counter-ions and by the increase in the oxygen content. Correlations among conductivities of original, deprotonated and reprotonated samples revealed the universal behaviour, which can be used for the precise prediction of the ability of PPy-NT to be reprotonated by acids. Kinetics of the degradation of PPy-NT by natural ageing is faster for deprotonated sample and, on the contrary, the reprotonation by acids had a stabilizing effect.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
<a href="/en/project/GA19-04859S" target="_blank" >GA19-04859S: Interaction of conducting polymers with organic dyes: Principles and consequences</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
European Polymer Journal
ISSN
0014-3057
e-ISSN
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Volume of the periodical
115
Issue of the periodical within the volume
June
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
290-297
UT code for WoS article
000471736400032
EID of the result in the Scopus database
2-s2.0-85063351441