Back to Search Start Over

Diffraction analysis of highly ordered smectic supramolecules of conjugated rodlike polymers

Authors :
Knaapila, M
Torkkeli, M
Jokela, K
Kisko, K
Horsburgh, LE
Palsson, LO
Seeck, OH
Dolbnya, IP
Bras, W
ten Brinke, G
Monkman, AP
Ikkala, O
Serimaa, R
Pålsson, L-O.
Polymer Chemistry and Bioengineering
Zernike Institute for Advanced Materials
Source :
Journal of applied crystallography 36, 702-707 (2003). doi:10.1107/S0021889803003881, Journal of Applied Crystallography, 36(1), 702-707
Publication Year :
2003
Publisher :
International Union of Crystallography (IUCr), 2003.

Abstract

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.

Details

ISSN :
00218898
Volume :
36
Database :
OpenAIRE
Journal :
Journal of Applied Crystallography
Accession number :
edsair.doi.dedup.....0582c4e9d2b64973fd4508633b55663f