Polymeric Ruthenium Bipyridine Complexes: New Potential Materials for Polymer Solar Cells
-
Marin, Veronica; Holder, Elisabeth; Schubert, Ulrich S.
- Abstract:
- Methyl methacrylate-containing bipyridine monomers were synthesized
with a hydoxy-functionalized bipyridine. The 4-methyl group of the 2,2-bipyridine was
used to introduce hydoxy-functionalized alkyl spacers of two different lengths. Two,
different synthetic routes were applied for the preparation of the hydoxy-functionalized
bipyridine via a bromo-(C7 spacer) or a silylated-(C3 spacer) intermediate. A copolymer
of poly(methyl methacrylate) with bipyridine units in the side chains was prepared by
free-radical copolymerization and characterized with 1H NMR, ultraviolet–visible, and
IR spectroscopy as well as gel permeation chromatography. The bipyridine units of the
copolymer were reacted with ruthenium bipyridine precursors. The resulting graft
copolymers displayed promising photophysical and electrochemical properties, opening
interesting perspectives for applications in the field of solar-cell devices.
- Year:
- 2004
- Type of Publication:
- Article
- Keywords:
- functionalized bipyridine ligands; poly methyl methacrylate; ruthenium II polypyridyl complexes; graft copolymers; photochemical and electrochemical properties
- Journal:
- Journal of Polymer Science: Part A: Polymer Chemistry
- Volume:
- 42
- Pages:
- 374 – 385