Publication details for Professor Andy MonkmanTammer, M, Horsburgh, L, Monkman, AP, Brown, W & Burrows, HD (2002). Effect of chain rigidity and effective conjugation length on the structural and photophysical properties of pyridine-based luminescent polymers. Advanced Functional Materials 12(6-7): 447-454.
- Publication type: Journal papers: academic
- ISSN/ISBN: 1616-301X
- Keywords: DYNAMIC LIGHT-SCATTERING; POLY(2,5-PYRIDINE DIYL); TRANSITION; ELECTROLUMINESCENCE; POLY(P-PYRIDINE); DIFFUSION
Author(s) from Durham
We report on the characterization of a number of random copolymers of
"para" poly(2,5-pyrindinediyl) (PPY) and "meta" poly(2,6-pyridinediyl)
(PmPY). We demonstrate some ability to control the photophysical
properties by variation of the ratio of the monomeric components of the
copolymers. These effects, in both film and solution are then related
to the chain rigidity and effective conjugation length of each
copolymer as determined by light scattering ellipsometric, and optical
measurements. We find that as expected, the more rigid the polymer
chain, the more delocalized the backbone pi-electrons become in the
solid state. However, in solution this does not appear to be the case.