Polyaniline synthesis with iron(III) chloride-hydrogen peroxide catalyst system: Reaction course and polymer structure study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F11%3A10098827" target="_blank" >RIV/00216208:11310/11:10098827 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.synthmet.2011.04.008" target="_blank" >http://dx.doi.org/10.1016/j.synthmet.2011.04.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.synthmet.2011.04.008" target="_blank" >10.1016/j.synthmet.2011.04.008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Polyaniline synthesis with iron(III) chloride-hydrogen peroxide catalyst system: Reaction course and polymer structure study

Popis výsledku v původním jazyce

We report on the catalytic polymerization of aniline (ANI) with FeCl(3)/H(2)O(2) system, which can considerably lower contamination of neat polyanilines (PANIs) by side-products characteristic of stoichiometric polymerization. However, catalytically prepared PANIs exhibit reduced conductivity related most probably to side reactions involving radicals generated as integral components of the FeCl(3)/H(2)O(2) system. Catalytic polymerization of ANI with FeCl(3)/H(2)O(2) system was found to be the reactionof approximately 2nd order with respect to ANI and gives PANIs of a good quality only when [H(2)O(2)] in the reaction mixture was kept low, i.e., at under-stoichiometric ratios [H(2)O(2)]/[ANI]. At over-stoichiometric ratio [H(2)O(2)]/[ANI], PANIs of lowered conductivity, worse spectroscopic characteristics and increased size of PANI nanostructures were obtained; nevertheless, these PANIs were not over-oxidized to pernigraniline state. The reaction-time profiles of the open-circuit poten

Název v anglickém jazyce

Polyaniline synthesis with iron(III) chloride-hydrogen peroxide catalyst system: Reaction course and polymer structure study

Popis výsledku anglicky

We report on the catalytic polymerization of aniline (ANI) with FeCl(3)/H(2)O(2) system, which can considerably lower contamination of neat polyanilines (PANIs) by side-products characteristic of stoichiometric polymerization. However, catalytically prepared PANIs exhibit reduced conductivity related most probably to side reactions involving radicals generated as integral components of the FeCl(3)/H(2)O(2) system. Catalytic polymerization of ANI with FeCl(3)/H(2)O(2) system was found to be the reactionof approximately 2nd order with respect to ANI and gives PANIs of a good quality only when [H(2)O(2)] in the reaction mixture was kept low, i.e., at under-stoichiometric ratios [H(2)O(2)]/[ANI]. At over-stoichiometric ratio [H(2)O(2)]/[ANI], PANIs of lowered conductivity, worse spectroscopic characteristics and increased size of PANI nanostructures were obtained; nevertheless, these PANIs were not over-oxidized to pernigraniline state. The reaction-time profiles of the open-circuit poten

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)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

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

161

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

1217-1225

Kód UT WoS článku

000293437100011

EID výsledku v databázi Scopus

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