0434067 - FZÚ 2015 RIV GB eng J - Journal Article
Domenici, V. - Milavec, J. - Zupančič, B. - Bubnov, Alexej - Hamplová, Věra - Zalar, B.
Brief overview on ²H NMR studies of polysiloxane-based side-chain nematic elastomers.
Magnetic Resonance in Chemistry. Roč. 52, č. 10 (2014), s. 649-655. ISSN 0749-1581. E-ISSN 1097-458X
R&D Projects: GA ČR GA13-14133S; GA MŠMT(CZ) LD14007
Grant - others:AVČR(CZ) M100101204
Institutional support: RVO:68378271
Keywords : NMR * ²H * iquid crystal elastomer * orientational order * phase transition * crosslinker * dynamics
Subject RIV: JJ - Other Materials
Impact factor: 1.179, year: 2014 ; AIS: 0.316, rok: 2014
Result website:
http://onlinelibrary.wiley.com/doi/10.1002/mrc.4092/pdf
DOI: https://doi.org/10.1002/mrc.4092

This is a brief overview on recent studies on liquid crystalline elastomers (LCEs) based on polysiloxane chain, in the form of monodomain films, selectively 2H-labelled in different parts of the LCE samples, i.e. on the crosslinker or mesogenic units. 2H NMR spectroscopic techniques were used to measure the temperature dependence of the quadrupolar splittings, linewidths and relaxation times, T1 and T2. From these data several information about the local orientational order parameter, Szz, of various LCE fragments, thermodynamic features of the isotropic-nematic transition and main motional processes could be generalized for this type of elastomers.
Permanent Link: http://hdl.handle.net/11104/0238201