Diffraction analysis of highly ordered smectic supramolecules of conjugated rodlike polymers
Journal of Applied Crystallography
Volume 36, Issue 3-1, pages 702–707, June 2003
How to Cite
Knaapila, M., Torkkeli, M., Jokela, K., Kisko, K., Horsburgh, L. E., Pålsson, L.-O., Seeck, O. H., Dolbnya, I. P., Bras, W., Ten Brinke, G., Monkman, A. P., Ikkala, O. and Serimaa, R. (2003), Diffraction analysis of highly ordered smectic supramolecules of conjugated rodlike polymers. Jnl Applied Crystallography, 36: 702–707. doi: 10.1107/S0021889803003881
- small-angle X-ray scattering;
- grazing incidence..
A small/wide-angle X-ray scattering and grazing incidence diffraction study of comb-shaped supramolecules of conjugated poly(2,5-pyridinediyl), acid dopant and hydrogen bonded amphiphilic side chains is reported. In solution, polymers are dissolved rodlike particles. When the side-chains are introduced, polymers self-assemble in hierarchic liquid crystals (LC). Diffraction patterns of aligned LC show h00, 020, and 004 reflections, and additional small-angle reflections along the polymer axis. A triangular correlation function indicating a very large correlation length is seen along the smectic axis. An aligned solid structure can be formed by cleaving side chains from the aligned LC.