期刊
PHASE TRANSITIONS
卷 83, 期 10-11, 页码 1014-1025出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/01411594.2010.509614
关键词
shape memory; actuators; orientational order; dynamics; liquid crystal elastomers
In this study, selectively deuterium-labelled monodomain liquid single crystalline elastomers have been investigated by means of 2H-NMR spectroscopy. The analysis of the spectral features as well as the study of the orientational properties in the paranematic and nematic phases confirmed the supercriticality of the paranematic-nematic transition as an intrinsic property of these systems. Moreover, the combined study of the spin-spin relaxation times (T2) and the 2H-NMR spectral linewidth measured in the paranematic phase indicates the presence of slow dynamic motions.
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