Viscoelasticity of main chain Liquid Crystalline Elastomers (Abstract/Poster in atti di convegno)

Type
Label
  • Viscoelasticity of main chain Liquid Crystalline Elastomers (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2006-01-01T00:00:00+01:00 (literal)
Alternative label
  • M. Giamberini, V. Ambrogi, P. Cerruti, C. Carfagna (2006)
    Viscoelasticity of main chain Liquid Crystalline Elastomers
    in 3rd International Conference “Times of Polymers (TOP), Ischia (Napoli)
    (literal)
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  • M. Giamberini, V. Ambrogi, P. Cerruti, C. Carfagna (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#descrizioneSinteticaDelProdotto
  • In this study we applied the time-temperature superposition (TTS) principle to DMTA analyses in the shear sandwich configuration performed on two main-chain polydomain elastomers, namely PHBHQ-AA and PHBHQ-SA, in their range of linear viscoelasticity. The former exhibits a nematic phase while the latter shows a smectic A phase. We found that TTS did not hold neither across the nematic –isotropic nor the smectic-isotropic transitions, so that data referring to the liquid crystalline and to the isotropic phases, respectively, were examined separately. An increase of the storage modulus of PHBHQ-AA in the isotropic phase with respect to the nematic phase was observed. (literal)
Titolo
  • Viscoelasticity of main chain Liquid Crystalline Elastomers (literal)
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