Charge transport and dielectric relaxation processes in anilin-based oligomers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F14%3A43871558" target="_blank" >RIV/70883521:28610/14:43871558 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/14:00427375

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0379677914000770#" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0379677914000770#</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.synthmet.2014.02.022" target="_blank" >10.1016/j.synthmet.2014.02.022</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Charge transport and dielectric relaxation processes in anilin-based oligomers

Popis výsledku v původním jazyce

The aniline-based oligomers were synthesized by oxidation of aniline with p-benzoquinone in the solutions of methanesulfonic acid, 2,5-dianilino-p- benzoquinone methanesulfonate salt being the main product. The synthesized samples were characterized by UV-visible and FTIR spectroscopies and compared with polyaniline base. In order to characterize the electrical properties of materials obtained, the conductivity measurements and broadband dielectric spectroscopy were performed. The dependence of DC conductivity on the acid concentration in the reaction medium was strongly non-linear (percolation-like) thus indicating a significant difference in electrical properties of lowly and highly protonated aniline-based oligomers. This difference is confirmed bydielectric properties exhibiting one common (dipole orientation polarization) and two specific (charge carrier hopping and interfacial polarization) relaxation processes.

Název v anglickém jazyce

Charge transport and dielectric relaxation processes in anilin-based oligomers

Popis výsledku anglicky

The aniline-based oligomers were synthesized by oxidation of aniline with p-benzoquinone in the solutions of methanesulfonic acid, 2,5-dianilino-p- benzoquinone methanesulfonate salt being the main product. The synthesized samples were characterized by UV-visible and FTIR spectroscopies and compared with polyaniline base. In order to characterize the electrical properties of materials obtained, the conductivity measurements and broadband dielectric spectroscopy were performed. The dependence of DC conductivity on the acid concentration in the reaction medium was strongly non-linear (percolation-like) thus indicating a significant difference in electrical properties of lowly and highly protonated aniline-based oligomers. This difference is confirmed bydielectric properties exhibiting one common (dipole orientation polarization) and two specific (charge carrier hopping and interfacial polarization) relaxation processes.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CD - Makromolekulární chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Synthetic Metals

ISSN

0379-6779

e-ISSN

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Svazek periodika

192

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

37-42

Kód UT WoS článku

000336473900006

EID výsledku v databázi Scopus

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