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Proceedings of the Estonian Academy of Sciences

ISSN 1736-7530 (electronic)   ISSN 1736-6046 (print)
Formerly: Proceedings of the Estonian Academy of Sciences, series Physics & Mathematics and  Chemistry
Published since 1952

Proceedings of the Estonian Academy of Sciences

ISSN 1736-7530 (electronic)   ISSN 1736-6046 (print)
Formerly: Proceedings of the Estonian Academy of Sciences, series Physics & Mathematics and  Chemistry
Published since 1952
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Molecular scale organized polyconjugated polymer–heteropolyacid composites; pp. 12–17

(Full article in PDF format) doi: 10.3176/proc.2009.1.02


Authors

Anatoly Kulak, Alexander Kokorin, Tamara Kulak, Dieter Meissner

Abstract

Hybrid organic–inorganic molecular-organized materials based on a conductive polymer – poly[2-metoxy-5-(3',7'-dimethyloctyloxy)-p-phenylenevinylene] (MDMO-PPV) – doped with Keggin-type heteropolyacids (polyoxometalates) were synthesized. It is shown that the rate of chemical interaction between MDMO-PPV and heteropolyacids correlates with the oxidative activity and acidity of the latter and leads to the formation of tertiary structures due to a strong electrostatic interaction of each 4–6 monomer units of the polymer with the heteropolyacid anion cluster. This interaction manifests itself in the appearance of an intensive EPR signal characteristic of the unpaired electron localized in the conjugated polymer matrix as well as in the changes in optical, photoelectrochemical, and photoluminescence properties of the composite films.

Keywords

polymer materials, polyconjugated polymer, poly(phenylenevinylene), polyoxometalates, heteropolyacids, bulk heterojunction, nanocomposites.

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Current Issue: Vol. 68, Issue 4, 2019




Publishing schedule:
No. 1: 20 March
No. 2: 20 June
No. 3: 20 September
No. 4: 20 December