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Issue 34, 2020
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Direct laser writing of poly(phenylene vinylene) on poly(barrelene)

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Abstract

The ring-opening metathesis polymerization of barrelene (bicyclo[2.2.2]octa-2,5,7-triene) is described. The monomer was synthesized using an optimized route and characterized, for the first time, using X-ray diffraction analysis of a coordination complex. The solubility of poly(barrelene) was found to correlate with the ratio of cis to trans exocyclic vinylenes in the polymer backbone. Copolymers of barrelene and norbornene were also prepared and used to obtain robust films. The barrelene-containing polymers underwent spontaneous dehydrogenation under air or upon being subjected to laser pulses to afford poly(phenylene vinylene). A series of well-defined patterns with micrometer dimensions were created by direct laser writing on films of poly(barrelene-co-norbornene) and visualized by the fluorescence of the conjugated polymer that formed upon irradiation.

Graphical abstract: Direct laser writing of poly(phenylene vinylene) on poly(barrelene)

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Supplementary files

Article information


Submitted
17 Jun 2020
Accepted
14 Jul 2020
First published
21 Jul 2020

This article is Open Access

Polym. Chem., 2020,11, 5437-5443
Article type
Paper

Direct laser writing of poly(phenylene vinylene) on poly(barrelene)

T. Tang, G. Ahumada and C. W. Bielawski, Polym. Chem., 2020, 11, 5437
DOI: 10.1039/D0PY00869A

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