Conducting composites prepared by the reduction of silver ions with poly(p-phenylenediamine)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F15%3A10317791" target="_blank" >RIV/00216208:11320/15:10317791 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/15:00442227

Výsledek na webu

<a href="http://dx.doi.org/10.1002/pi.4817" target="_blank" >http://dx.doi.org/10.1002/pi.4817</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pi.4817" target="_blank" >10.1002/pi.4817</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Conducting composites prepared by the reduction of silver ions with poly(p-phenylenediamine)

Popis výsledku v původním jazyce

Poly(p-phenylenediamine) (PPDA) and also its ladder-like analogue were prepared by oxidation of p-phenylenediamine with ammonium peroxydisulfate in an aqueous solution of 0.4 mol L-1 hydrochloric acid and converted to PPDA bases. These were used as reductants of silver nitrate to silver nanoparticles in 1 mol L-1 methanesulfonic acid or in water at various mole ratios of silver nitrate to p-phenylenediamine units from 0 to 1.8. The original conductivity of the PPDA, 10-12 S cm- 1, increased to the orderof 100 S cm-1 for the PPDA-silver composites containing 27-40 wt% (i.e. 4.5-6.6 vol%) silver. Fourier transform infrared spectra indicated a practically unchanged molecular structure of PPDA in the composites. In contrast, Raman spectroscopy showed theexistence of regions with unchanged molecular structure of PPDA as well as the presence of regions containing silver particles and oxidized PPDA moieties.

Název v anglickém jazyce

Conducting composites prepared by the reduction of silver ions with poly(p-phenylenediamine)

Popis výsledku anglicky

Poly(p-phenylenediamine) (PPDA) and also its ladder-like analogue were prepared by oxidation of p-phenylenediamine with ammonium peroxydisulfate in an aqueous solution of 0.4 mol L-1 hydrochloric acid and converted to PPDA bases. These were used as reductants of silver nitrate to silver nanoparticles in 1 mol L-1 methanesulfonic acid or in water at various mole ratios of silver nitrate to p-phenylenediamine units from 0 to 1.8. The original conductivity of the PPDA, 10-12 S cm- 1, increased to the orderof 100 S cm-1 for the PPDA-silver composites containing 27-40 wt% (i.e. 4.5-6.6 vol%) silver. Fourier transform infrared spectra indicated a practically unchanged molecular structure of PPDA in the composites. In contrast, Raman spectroscopy showed theexistence of regions with unchanged molecular structure of PPDA as well as the presence of regions containing silver particles and oxidized PPDA moieties.

Druh

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

CEP obor

JI - Kompositní materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/GP14-05568P" target="_blank" >GP14-05568P: Vodivé inkousty na bázi hybridních koloidních kompozitů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Polymer International

ISSN

0959-8103

e-ISSN

—

Svazek periodika

64

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

496-504

Kód UT WoS článku

000351209200005

EID výsledku v databázi Scopus

2-s2.0-84924666991