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Journal article

Thermal and mechanical properties of new main-chain liquid-crystalline elastomers

  • Sánchez-Ferrer, Antoni Physics Department, University of Fribourg, Switzerland - Institute for Macromolecular Chemistry, Albert Ludwigs University, Freiburg, German
  • Finkelmann, Heino Institute for Macromolecular Chemistry, Albert Ludwigs University, Freiburg, Germany
    11.09.2009
Published in:
  • Molecular Crystals and Liquid Crystals. - 2009, vol. 508, p. 348-356
liquid-crystalline elastomers
thermoelastic experiments
uniaxial stress-strain deformations
English New Main-Chain Liquid-Crystalline Elastomers (MCLCEs) were synthesised based on reacting vinyloxy-terminated mesogens under hydrosilylation conditions with a flexible crosslinker. These main-chain systems showed smectic and nematic mesophases and their anisotropic properties were mechanically and thermally analysed as function of the crosslinking density. Due to the suitable chemistry used in this work low crosslinking densities have been achieved (2.5 mol-%) with low soluble content (5%). For the first time, the degree of crosslinking could be adjusted and nematic or smectic MCLCEs with tuneable thermal and mechanical properties were obtained.
Faculty
Faculté des sciences et de médecine
Department
Département de Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/301258
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