Issue 11, 2016

Enhanced catalytic activity of oxovanadium complexes in oxidative polymerization of diphenyl disulfide

Abstract

Oxygen-oxidative polymerization of diphenyl disulfide gives poly(1,4-phenylene sulfide) (PPS), catalyzed by a vanadyl complex and a protic acid. N,N′-Ethylenebis(salicylideneaminato)oxovanadium(IV) (VO(salen)) which has been reported to be catalytically inactive at ambient temperature because of the insufficient reactivity of its oxidized state, an oxovanadium(V) complex, for the oxidation of the monomer turned out to exhibit an excellent catalytic activity on raising the reaction temperature above 100 °C. The enhanced reactivity of VO(salen)-acid or bis(2,4-pentanedionato)oxovanadium(IV) (VO(acac)2)-acid catalytic systems at elevated temperatures gave insight into the catalytic mechanism where oxidation of the monomer with the oxovanadium(V) complex dominated the reactivity, which was also accelerated by a second redox shuttle molecule, such as quinones with a potential near that of the [VO(salen)]0/+ couple.

Graphical abstract: Enhanced catalytic activity of oxovanadium complexes in oxidative polymerization of diphenyl disulfide

Supplementary files

Article information

Article type
Paper
Submitted
12 Dez 2015
Accepted
14 Feb 2016
First published
16 Feb 2016
This article is Open Access
Creative Commons BY license

Polym. Chem., 2016,7, 2087-2091

Enhanced catalytic activity of oxovanadium complexes in oxidative polymerization of diphenyl disulfide

F. Aida, Y. Takatori, D. Kiyokawa, K. Nagamatsu, K. Oyaizu and H. Nishide, Polym. Chem., 2016, 7, 2087 DOI: 10.1039/C5PY01980J

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