Conducting composite cryogels based on poly(aniline-co-p-phenylenediamine) supported by poly(vinyl alcohol)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10439672" target="_blank" >RIV/00216208:11320/18:10439672 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389013:_____/18:00495535

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=BdKgDnoW5r" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=BdKgDnoW5r</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.synthmet.2018.10.008" target="_blank" >10.1016/j.synthmet.2018.10.008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Conducting composite cryogels based on poly(aniline-co-p-phenylenediamine) supported by poly(vinyl alcohol)

Popis výsledku v původním jazyce

Poly(aniline-co-p-phenylenediamine) cryogels stabilized by poly(vinyl alcohol) were prepared by one-step oxidative cryocopolymerization. Composite cryogels have macroporous structure with pore sizes up to tens of micrometers; however, copolymer cryogels have smaller pores compared to homopolymer cryogels. The cryogels containing 70 mol% and 80 mol% of aniline have the smallest pores and have the highest mechanical stability. The decrease in aniline fraction led to decrease of conductivity from 5 x 10(-2) S cm(-1) for polyaniline-based cryogel to &lt; 1 x 10(-11) S cm(-1) for poly(p-phenylenediamine) analogue. The cryogel with 80 mol% of aniline, which already had improved mechanical integrity, possesses only moderately decreased conductivity up to 5 x 10(-4) S cm(-1) compared with polyaniline-based cryogel. The corresponding changes in the molecular structure of the composite cryogels are reflected in their infrared and Raman spectra using 633 and 785 nm laser excitation.

Název v anglickém jazyce

Conducting composite cryogels based on poly(aniline-co-p-phenylenediamine) supported by poly(vinyl alcohol)

Popis výsledku anglicky

Poly(aniline-co-p-phenylenediamine) cryogels stabilized by poly(vinyl alcohol) were prepared by one-step oxidative cryocopolymerization. Composite cryogels have macroporous structure with pore sizes up to tens of micrometers; however, copolymer cryogels have smaller pores compared to homopolymer cryogels. The cryogels containing 70 mol% and 80 mol% of aniline have the smallest pores and have the highest mechanical stability. The decrease in aniline fraction led to decrease of conductivity from 5 x 10(-2) S cm(-1) for polyaniline-based cryogel to &lt; 1 x 10(-11) S cm(-1) for poly(p-phenylenediamine) analogue. The cryogel with 80 mol% of aniline, which already had improved mechanical integrity, possesses only moderately decreased conductivity up to 5 x 10(-4) S cm(-1) compared with polyaniline-based cryogel. The corresponding changes in the molecular structure of the composite cryogels are reflected in their infrared and Raman spectra using 633 and 785 nm laser excitation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

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

246

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

6

Strana od-do

144-149

Kód UT WoS článku

000453491800017

EID výsledku v databázi Scopus

2-s2.0-85055537188