Conductivity and morphology of polyaniline and polypyrrole prepared in the presence of organic dyes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F20%3A00523878" target="_blank" >RIV/61389013:_____/20:00523878 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/20:10420948

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0379677920301430?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0379677920301430?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.synthmet.2020.116373" target="_blank" >10.1016/j.synthmet.2020.116373</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Conductivity and morphology of polyaniline and polypyrrole prepared in the presence of organic dyes

Popis výsledku v původním jazyce

Polyaniline was prepared by the oxidation of aniline hydrochloride or aniline with ammonium peroxydisulfate in the presence of 37 anionic or cationic organic dyes. Similar preparation of polypyrrole used iron(III) chloride as an oxidant. The goal of the study is to evaluate the effect of dyes on the conductivity of both polymers and their morphology at nanoscale. The preparation of polyaniline using aniline hydrochloride as a monomer was unaffected by the dyes presence, its conductivity was of the order of units S cm−1 and morphology was globular. The similar oxidation of aniline has led to the products with reduced conductivity and unresolved morphology. On the other hand, the presence of dyes had significant impact on the conductivity of polypyrrole, and all tested dyes improved the conductivity, for example methyl red from 1 S cm−1 to 42 S cm−1. Most of the samples were globular, but several dyes, such as Acid Blue 25, acriflavine, methyl orange, methylene blue, neutral red, phenosafranin or safranin stimulated the growth of one-dimensional morphologies, polypyrrole nanofibers or nanotubes.

Název v anglickém jazyce

Conductivity and morphology of polyaniline and polypyrrole prepared in the presence of organic dyes

Popis výsledku anglicky

Polyaniline was prepared by the oxidation of aniline hydrochloride or aniline with ammonium peroxydisulfate in the presence of 37 anionic or cationic organic dyes. Similar preparation of polypyrrole used iron(III) chloride as an oxidant. The goal of the study is to evaluate the effect of dyes on the conductivity of both polymers and their morphology at nanoscale. The preparation of polyaniline using aniline hydrochloride as a monomer was unaffected by the dyes presence, its conductivity was of the order of units S cm−1 and morphology was globular. The similar oxidation of aniline has led to the products with reduced conductivity and unresolved morphology. On the other hand, the presence of dyes had significant impact on the conductivity of polypyrrole, and all tested dyes improved the conductivity, for example methyl red from 1 S cm−1 to 42 S cm−1. Most of the samples were globular, but several dyes, such as Acid Blue 25, acriflavine, methyl orange, methylene blue, neutral red, phenosafranin or safranin stimulated the growth of one-dimensional morphologies, polypyrrole nanofibers or nanotubes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10404 - Polymer science

Projekt

<a href="/cs/project/GA19-04859S" target="_blank" >GA19-04859S: Interakce vodivých polymerů s organickými barvivy: Principy a důsledky</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

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

—

Svazek periodika

264

Číslo periodika v rámci svazku

June

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000531075700012

EID výsledku v databázi Scopus

2-s2.0-85083399072