Conjugated polyaniline as a result of the benzidine rearrangement

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F15%3A00442229" target="_blank" >RIV/61389013:_____/15:00442229 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1002/pi.4869" target="_blank" >http://dx.doi.org/10.1002/pi.4869</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pi.4869" target="_blank" >10.1002/pi.4869</a>

Result language

angličtina

Original language name

Conjugated polyaniline as a result of the benzidine rearrangement

Original language description

The mechanism of the oxidative polymerization of aniline is reviewed on the basis of the experimental evidence and reaction schemes proposed in the literature. It is demonstrated that the balance between the non-protonated and protonated forms of the monomer and the growing chain is responsible for the diversity of the molecular structure, morphology and properties of aniline oxidation products. Various forms are oxidized by two oxidation mechanisms: (1) chain reaction of electrophilic substitution and(2) coupling of cation-radical centres. At pH > 2.5, the non-protonated reagents are oxidized with a chain reaction controlled by electrophilic substitution of the aromatic ring. The reaction leads to the formation of non-conducting aniline oligomers with heterogeneous molecular structures. At pH = 2.5?4, the electrophilic substitution is reduced because of the protonation of the aniline, and the cyclic dimer, phenazine, becomes the main product of the oxidation. The growth of the conjug

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CD - Macromolecular chemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

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

Name of the periodical

Polymer International

ISSN

0959-8103

e-ISSN

—

Volume of the periodical

64

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

453-465

UT code for WoS article

000351209200001

EID of the result in the Scopus database

2-s2.0-84924719467