Novel poly(p-xylylene) s and poly (p-phenylene vinylene) are obtained via cathodically generated quinodimethanes
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| Author(s): |
Rosamaria Wu Chia Li
Total Authors: 1
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| Document type: | Doctoral Thesis |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Conjunto das Químicas (IQ e FCF) (CQ/DBDCQ) |
| Defense date: | 2002-11-14 |
| Examining board members: |
Paulo Roberto Olivato;
Elisabete Frollini;
Yoshio Kawano;
Daisy de Brito Rezende;
Lucimara Stolz Roman
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| Advisor: | Jonas Gruber |
| Abstract | |
The synthesis via Suzuki coupling reaction of 11 new biphenylenic and terphenylenic polymer precursors, substituted by long-chain electron donating or withdrawing groups, is described. The electrochemical reduction of these precursors led to the corresponding poly(p-xylylene)s and poly(p-phenylene vinylene)s. Ten out of the 11 generated polymers have been never described before. AII the polymers were fully characterised by spectroscopic (UV-VIS, IR, NMR) and thermal analyses, as well as by SEC and electrical conductivity measurements of iodine-doped specimens. The positive charge carrier mobility and the barrier height for electron injection (metal/polymer) could be determined through I x V investigations of sandwich devices (metal/polymer/metal) for one of the polymers. (AU) | |