In this work synthesis and properties of novel Pi-conjugated
polymers containing diketopyrrolopyrrole (DPP) and benzodifuranone
(BZDF) chromophores in the main chain, which are suitable as active
materials in optoelectronic applications, are developed and
investigated. The polymers were synthesized via metal-mediated or
-catalyzed Suzuki, Stille, Sonogashira and Yamamoto cross-coupling
polycondensation reactions or by using oxidative and anodic
electropolymerization. The resulting polymers were characterized
using gel permeation chromatography, NMR-, UV/vis-, and
fluorescence spectroscopy, mass spectroscopy, and cyclic
voltrammetry. The polymers exhibit low HOMO-LUMO band gaps and
reversible oxidation and reduction processes, which suggests a
strong donor-acceptor character. Electrochromic properties were
found upon oxidation and reduction. Additionally, a series of
cross-linked conjugated microporous polymers was synthesized. They
exhibit high surface area and micropores in nanometer range.
Furthermore, the influence via variation of electron donor and
acceptor on the HOMO-LUMO band gaps of the conjugated polymers was
studied.
General
Imprint: |
Disserta Verlag
|
Country of origin: |
United States |
Release date: |
June 2012 |
First published: |
June 2012 |
Authors: |
Kai Zhang
|
Dimensions: |
229 x 152 x 14mm (L x W x T) |
Format: |
Hardcover - Sewn / Cloth over boards
|
Pages: |
232 |
ISBN-13: |
978-3-9542501-2-7 |
Categories: |
Books >
Science & Mathematics >
Chemistry >
General
Promotions
|
LSN: |
3-9542501-2-8 |
Barcode: |
9783954250127 |
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