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Journal article

Side-chain liquid crystalline polyesters for optical information storage

By Ramanujam, P.S.1; Holme, Christian2; Hvilsted, Søren1; Pedersen, Marianne2; Andruzzi, Fulvio3; Paci, Massimo4; Tassi, Eliana L.4; Magagnini, Pierluigi4; Hoffman, Uwe5; Zebger, Ingo5; Siesler, Heinz W5 ...and 1 more

From

Risø National Laboratory for Sustainable Energy, Technical University of Denmark1

Risø National Laboratory2

National Research Council of Italy3

Università di Pisa4

University of Duisburg-Essen5

Azobenzene side-chain liquid crystalline polyester structures suitable for permanent optical storage are described. The synthesis and characterization of the polyesters together with differential scanning calorimetry and X-ray investigations are discussed. Optical anisotropic investigations and holographic storage in one particular polyester are described in detail and polarized Fourier transform infrared spectroscopic data complementing the optical data are presented.

Optical and atomic force microscope investigations point to a laser-induced aggregation as responsible for permanent optical storage.

Language: English
Publisher: John Wiley & Sons, Ltd.
Year: 1996
Pages: 768-776
ISSN: 10991581 and 10427147
Types: Journal article
DOI: 10.1002/(SICI)1099-1581(199609)7:9<768::AID-PAT587>3.0.CO;2-E
Keywords

Azobenzene polymers Holography Liquid crystals Optical information storage

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