1. Brief overview on 2H NMR studies of polysiloxane-based side-chain nematic elastomers.
- Author
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Domenici, Valentina, Milavec, Jerneja, Zupančič, Blaž, Bubnov, Alexej, Hamplova, Vera, and Zalar, Boštjan
- Subjects
POLYMER liquid crystals ,SILOXANES ,NUCLEAR magnetic resonance spectroscopy ,THERMODYNAMIC cycles ,ELASTOMERS - Abstract
This is a brief overview on recent studies on liquid crystalline elastomers (LCEs) based on polysiloxane chain, in the form of monodomain films, selectively
2 H-labeled in different parts of the LCE samples, i.e. on the crosslinker or mesogenic units.2 H NMR spectroscopic techniques were used to measure the temperature dependence of the quadrupolar splittings, line widths and relaxation times, T1 and T2 . From these data, several information about the orientational order parameter, S, of various LCE fragments, thermodynamic features of the isotropic-nematic transition and main motional processes could be generalized for this type of elastomers. Copyright © 2014 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]- Published
- 2014
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