Speciální anorganické sloučeniny pro přípravu a dopování polypyrrolu
Title Alternative:Special inorganic compounds for the preparation and doping polypyrrole
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Date
2012
Authors
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Publisher
Technická Univerzita v Liberci
Abstract
V rámci bakalářské práce byly připraveny p-toluensulfonáty: měďnatý, kobaltnatý, nikelnatý, chromitý a železitý, podle optimalizovaných postupů pro laboratoře KCH TUL. Dále byl studován vliv těchto solí při přípravě a dopování polypyrrolu. Polypyrrol byl připravován na polyesterový substrát a byly studovány elektromagnetické vlastnosti a struktura polypyrrolového vodivého nánosu na tomto substrátu. Polypyrrol, připravovaný v přítomnosti p-toluensulfonátových aniontů, těchto sloučenin, dosahoval lepších elektromagnetických vlastností. Byl také prověřen vliv tenzidů (Spolionu), které, byly-li přidávány v omezené míře, pozitivně ovlivňovaly elektrickou vodivost a zejména elektromagnetickou stínící účinnost. Studován byl také mechanismus polymerizační reakce. Tato zřejmě probíhá složitým třístupňovým radikálovým mechanismem. Reakční mechanismus byl studován z hlediska oxidačně-redukčních změn, probíhajících během polymerizace.
The thesis is dedicated to preparing of p-toluenesulfonates: copper, cobalt, nickel, chromium and iron, according to optimized procedures for laboratories KCH TUL. Also the influence of these salts in the preparation and doping polypyrrole was studied. Polypyrrole was prepared on polyester substratum. Electromagnetic properties and structure of the conductive polypyrroles deposition on this substratum were studied. Polypyrrol was prepared in the presence of p-toluensulfonate anions. These compounds generated better electromagnetic performance. The influence of surfactants (spolion) was also examined. The surfactants, that were added to a limited extent, positively influenced the electrical conductivity and especially electromagnetic shielding effectiveness. The mechanism of polymerization reaction was also studied. This is obviously a complicated three-stage radical mechanism. The reaction mechanism was studied in terms of oxidation-reduction changes taking place during polymerization.
The thesis is dedicated to preparing of p-toluenesulfonates: copper, cobalt, nickel, chromium and iron, according to optimized procedures for laboratories KCH TUL. Also the influence of these salts in the preparation and doping polypyrrole was studied. Polypyrrole was prepared on polyester substratum. Electromagnetic properties and structure of the conductive polypyrroles deposition on this substratum were studied. Polypyrrol was prepared in the presence of p-toluensulfonate anions. These compounds generated better electromagnetic performance. The influence of surfactants (spolion) was also examined. The surfactants, that were added to a limited extent, positively influenced the electrical conductivity and especially electromagnetic shielding effectiveness. The mechanism of polymerization reaction was also studied. This is obviously a complicated three-stage radical mechanism. The reaction mechanism was studied in terms of oxidation-reduction changes taking place during polymerization.
Description
katedra: NTI; přílohy: 1 CD; rozsah: 105
Subject(s)
p-toluensulfonáty, polypyrrol, polyester, vodivost, p-toluenesulfonates, polypyrrole, polyester, conductivity