Thermotropic Photochromic Polypeptides: Polyornithine and Polylysine Bearing Azobenzene Units in the Side Chains
- Resource Type
- Authors
- Céline Guillermain; Adriano Fissi; Osvaldo Pieroni; Bernard Gallot
- Source
- Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Taylor and Francis, 1999, 330 (1), pp.65-73
- Subject
- chemistry.chemical_classification
Condensation polymer
Azo compound
Stereochemistry
02 engineering and technology
Polymer
010402 general chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Thermotropic crystal
0104 chemical sciences
Crystallography
chemistry.chemical_compound
Photochromism
[CHIM.POLY]Chemical Sciences/Polymers
Azobenzene
chemistry
Polylysine
Side chain
[CHIM]Chemical Sciences
0210 nano-technology
ComputingMilieux_MISCELLANEOUS
- Language
- ISSN
- 1058-725X
The structure of poly(L-ornithine)s and poly(L-lysine)s containing between 19% and 100% of azobenzene units in the side chains has been studied, by X-ray diffraction, between room temperature and 250[ddot]C. Polymers were found to exhibit mesomorphic structures of the smectic A type deriving from the β-structure of polypeptides. The influence of the nature of the amino acid is discussed.