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V. Shibaev (1994)
Some New Physico-Chemical Aspects of Side Chain Liquid Crystal PolymersMolecular Crystals and Liquid Crystals, 243
K. Anderle, R. Birenheide, Martin Werner, J. Wendorff (1991)
Molecular addressing? Studies on light-induced reorientation in liquid-crystalline side chain polymersLiquid Crystals, 9
S. Ivanov, I. Yakovlev, S. Kostromin, V. Shibaev, L. Läsker, J. Stumpe, D. Kreysig (1991)
Laser‐induced birefringence in homeotropic films of photochromic comb‐shaped liquid‐crystalline copolymers with azobenzene moieties at different temperaturesDie Makromolekulare Chemie, Rapid Communications, 12
L. Läsker, T. Fischer, J. Stumpe, S. Kostromin, S. Ivanov, V. Shibaev, Ralf Ruhmannc (1994)
Photoinduced Optical Anisotropy in thin Films of Amorphous Photochromic Side Chain PolymersMolecular Crystals and Liquid Crystals, 246
Shibaev (1990)
Vysokomol. Soedin., Ser.APolymer Science USSR, 32
Action of the laser illumination on optical properties of liquid crystalline (LC) comb‐shaped acrylic and methacrylic copolymers containing cyanobiphenyl mesogenic groups and azo dye fragments has been studied. Under an illumination the cis‐trans configurational changes of dye fragments take place and reorientation of the side groups towards a direction perpendicular to the electric vector of the actinic light occurs. As a result the photoinduced optical birefringence (δn = 0.05‐0.11) appears. The detailed study of dichrotic and optical properties of polymeric films, kinetics and relaxation of δn, as well as mechanism of orientational transformations during a laser illumination are discussed. The induced optical anisotropy of the films can be changed reversibly by rotating the electric vector of the laser beam in respect to the film that may be used in reversible optical data storage.
Macromolecular Symposia – Wiley
Published: Jun 1, 1995
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