Premium
Thermal and Photochemical Crosslinking of Hyperbranched Polyphenylene With Organic Azides
Author(s) -
Pötzsch Robert,
Voit Brigitte
Publication year - 2012
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201100795
Subject(s) - benzene , thermal , materials science , photochemistry , polymer chemistry , molecule , morphology (biology) , micrometer , chemical engineering , chemistry , organic chemistry , optics , physics , biology , meteorology , genetics , engineering
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.