Polyaniline dispersion 8. The control of particle morphology

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F99%3A11110015" target="_blank" >RIV/00216208:11320/99:11110015 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Polyaniline dispersion 8. The control of particle morphology

Original language description

Polyaniline dispersions are obtained when aniline is oxidized in an acidic aqueous medium with ammonium peroxodisulfate in the presence of hydroxypropylcellulose. The progress of aniline polymerization has been monitored by the acidity changes, the formation of colloidal particles by dynamic light scattering. Submicrometre spherical polyaniline particles of good uniformity in size are produced at 0 °C, while at 40 °C the resulting objects have coral-like cylindrical morphology. A similar change of of particle shape has been achieved at 0 °C by the acceleration of polyaniline formation by addition of a mediator, p-phenylenediamine. The concept of the formation of spherical and non-spherical morphologies and the role of the autoacceleration effect in thedispersion polymerization of aniline are proposed. The polymerization in the frozen reaction mixture at -25 °C yielded a macroporous composite.

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

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

1999

Confidentiality

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

Name of the periodical

Polymer

ISSN

0032-3861

e-ISSN

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Volume of the periodical

40

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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