Počet záznamů: 1

Conducting polypyrrole and polypyrrole/manganese dioxide composites prepared with a solid sacrificial oxidant of pyrrole

SYSNO ASEP	0542357
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Conducting polypyrrole and polypyrrole/manganese dioxide composites prepared with a solid sacrificial oxidant of pyrrole
Tvůrce(i)	Sapurina, I. (CZ) Bubulinca, C. (CZ) Trchová, M. (CZ) Prokeš, J. (CZ) Stejskal, Jaroslav (UMCH-V)_{RID, ORCID, SAI}
Číslo článku	116807
Zdroj.dok.	Synthetic Metals. - : Elsevier - ISSN 0379-6779 Roč. 278, August (2021)
Poč.str.	7 s.
Jazyk dok.	eng - angličtina
Země vyd.	CH - Švýcarsko
Klíč. slova	conducting polymer ; polypyrrole ; manganese dioxide
Vědní obor RIV	CD - Makromolekulární chemie
Obor OECD	Polymer science
CEP	GA19-04859S GA ČR - Grantová agentura ČR
Způsob publikování	Omezený přístup
Institucionální podpora	UMCH-V - RVO:61389013
UT WOS	000680021100005
EID SCOPUS	85105714751
DOI	10.1016/j.synthmet.2021.116807
Anotace	Polypyrrole was prepared by the oxidation of pyrrole with solid manganese dioxide. The present study concerns the chemistry of this process rather than materials properties of the products. The oxidant alone is insoluble in aqueous medium but the reductive dissolution takes place in the presence of pyrrole. Polypyrrole is the exclusive product below the stoichiometric mole ratio [MnO2]/[pyrrole] = 1.25, and polypyrrole/manganese dioxide composites result at higher ratios. Unlike with iron(III) chloride where protons are generated during the oxidation of pyrrole, with manganese dioxide they are consumed and water is a by-product. The sufficient acidity of the reaction medium is thus needed in order to obtain conducting materials. The presence of organic dyes in the preparation of polypyrrole improved the conductivity. One-dimensional morphology of polypyrrole was observed when methyl orange was introduced to the reaction mixture.
Pracoviště	Ústav makromolekulární chemie
Kontakt	Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358
Rok sběru	2022
Elektronická adresa	https://www.sciencedirect.com/science/article/pii/S0379677921001120?via%3Dihub

Počet záznamů: 1