Title Thermal and photochemical crosslinking of hyperbranched polyphenylene with organic azides
Date 09.02.2012
Number 31325
Abstract Here, we report on the first example of crosslinking (CL) hyperbranched polyphenylene (hb–PPh) with a small molecule crosslinker 1,3,5-tris(azidomethyl)benzene (TAMB). It was successfully shown that CL of the hb–PPh/TAMB (9:1) film is possible either thermally or photochemically making use of fundamentally different reaction mechanisms. Starting from a model reaction to prove the feasibility of the thermal CL reaction, we went on to check both the thermal and the photochemical crosslinkability of micrometer thick films. IR spectroscopy was furthermore used to confirm the CL process. Finally, the thin film morphology of the films before and after CL was investigated by AFM, revealing that the surface morphology was unaffected by the CL processes.
Publisher Macromolecular Rapid Communications
Citation Macromolecular Rapid Communications 33 (2012) 635-639
Authors Pötzsch, R. ; Voit, B.
Tags azide crosslinking cycloaddition hyperbranched polyphenylene click polymerization polymers films cycloaddition coatings

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