TRIBOLUMINESCENCE AND TRIBOPOLYMERIZATION OF 9-ETHYL-3-VINYLCARBAZOLE

5 May 1981

journal article
research article
Published by Oxford University Press (OUP) in Chemistry Letters

Vol. 10 (5) , 589-592
https://doi.org/10.1246/cl.1981.589

Abstract

9-Ethyl-3-vinylcarbazole(I) was found to be triboiuminescent as well as tribopolymerizable in crystalline state. When mechanical stress was applied to I crystals, the observed luminescence was identified as fluorescence by comparing with photoexcited emission from the crystals and also by energy transfer to singlet excited state of perylene. Tribopolymierization was confirmed by GPC analysis. Although correlation between triboluminescence and tribopolymerization was not clear, friction induced thermal polymerization was unlikely and the singlet excited state of I was tentatively considered as the precursor of initiating species.

Keywords

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