Influence of Supramolecular Order on the Light-Induced Reorientation Process in Photochromic Side Group Polymers

Lutz Läsker Humboldt University, Dept. of Chemistry, Hessische Str. 1-2, D-10115, Berlin; Lomonossov University, Dept. of Chemistry, 119899, Moscow, Russia; Institute of Applied Chemistry, D-12484, Berlin, Germany

Joachim Stumpe Humboldt University, Dept. of Chemistry, Hessische Str. 1-2, D-10115, Berlin; Lomonossov University, Dept. of Chemistry, 119899, Moscow, Russia; Institute of Applied Chemistry, D-12484, Berlin, Germany

Thomas Fischer Humboldt University, Dept. of Chemistry, Hessische Str. 1-2, D-10115, Berlin; Lomonossov University, Dept. of Chemistry, 119899, Moscow, Russia; Institute of Applied Chemistry, D-12484, Berlin, Germany

Michael Rutloh Humboldt University, Dept. of Chemistry, Hessische Str. 1-2, D-10115, Berlin; Lomonossov University, Dept. of Chemistry, 119899, Moscow, Russia; Institute of Applied Chemistry, D-12484, Berlin, Germany

Sergei Kostromin Lomonossov University, Dept. of Chemistry, 119899, Moscow, Russia

Ralf Ruhmann Institute of Applied Chemistry, D-12484, Berlin, Germany

Abstract

A new approach for optical data storage is presented using amorphous films of photochromic polymers. Concerning the tendency to form supramolecular order these polymers are situated at the border between amorphous and Liquid Crystalline Polymers (LCP's). The light-induced reorientation of the photochromic azobenzene moieties by an angular-dependent photoselection process may cause a reorientation of the non-photochromic moieties. In this way an optical axis is generated in the initially amorphous films by a photochemically induced physical orientation process. The resulting values of optical anisotropy are close to those of aligned LCP films.

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Influence of Supramolecular Order on the Light-Induced Reorientation Process in Photochromic Side Group Polymers

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Influence of Supramolecular Order on the Light-Induced Reorientation Process in Photochromic Side Group Polymers

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