Synthesis of Polytriarylamines via Microwave-Assisted Palladium-Catalysed Amination

A new synthetic route to polytriarylamines by microwave‐assisted palladium‐catalysed amination between 2,4‐dimethylaniline and 4,4′‐dibromobiphenyl is reported. The use of microwave heating significantly reduces the polymerisation time from days to around five minutes when conducted at 100 °C. Howev...

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Bibliographic Details
Published in:Macromolecular rapid communications. 2007-02, Vol.28 (4), p.449-455
Main Authors: Shen, I-Wen, McCairn, Mark C., Morrison, John J., Turner, Michael L.
Format: Article
Language:English
Subjects:
microwave-assisted polymerisation
organic semiconductor
polytriarylamine
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Summary:A new synthetic route to polytriarylamines by microwave‐assisted palladium‐catalysed amination between 2,4‐dimethylaniline and 4,4′‐dibromobiphenyl is reported. The use of microwave heating significantly reduces the polymerisation time from days to around five minutes when conducted at 100 °C. However, prolonged microwave irradiation (20 min) can cause chain degradation of these polymers. Reactive amino and bromo end‐groups can be removed by sequential reaction with 4‐bromoanisole and diethylamine to generate polytriarylamines that are suitable for the fabrication of organic electronic devices.
ISSN:1022-1336
1521-3927
DOI:10.1002/marc.200600720