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Free-standing Smectic LC Elastomer Films

Published online by Cambridge University Press:  15 March 2011

C. Tolksdorf,
R. Zentel,
R. Köhler,
U. Dietrich,
M. Lösche and
R. Stannarius
C. Tolksdorf
Affiliation:
Universität Mainz, Institut für Organische Chemie, Duesbergweg 10-14, D-55099 Mainz
R. Zentel
Affiliation:
Universität Mainz, Institut für Organische Chemie, Duesbergweg 10-14, D-55099 Mainz
R. Köhler
Affiliation:
Universität Leipzig, Institut für Experimentalphysik I, Linnestrasse 5, D-04103 Leipzig
U. Dietrich
Affiliation:
Universität Leipzig, Institut für Experimentalphysik I, Linnestrasse 5, D-04103 Leipzig
M. Lösche
Affiliation:
Universität Leipzig, Institut für Experimentalphysik I, Linnestrasse 5, D-04103 Leipzig
R. Stannarius
Affiliation:
Universität Leipzig, Institut für Experimentalphysik I, Linnestrasse 5, D-04103 Leipzig
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Abstract

We probe the mesophase transitions and layer structures in thin ordered smectic liquid crystalline elastomer films by means of x-ray diffraction and optical microscopy. Oriented elastomer films of submicrometer thickness are produced by crosslinking freely suspended smectic polymer films. After crosslinking, the mesomorphism is similar to that of the precursor polymer. Smectic layers align parallel to the film plane. The layer spacing increases with temperature in the SmC* phase while it decays above the SmC*-SmA transition.

Keywords

Smectic elastomersx-rayoptical microscopy

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