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Physical Aging in Side-Chain Liquid Crystal Polymers: A DSC Investigation of the Enthalpy Relaxation

✍ Scribed by Andreozzi, Laura; Faetti, Massimo; Giordano, Marco; Palazzuoli, Diego


Book ID
126889884
Publisher
American Chemical Society
Year
2002
Tongue
English
Weight
162 KB
Volume
35
Category
Article
ISSN
0024-9297

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A strong dependence of the rotational dynamics of the mesogenic units ( brelaxation) on the order of the mesophase was found in sidechain liquid crystal polymers. The preexponential frequency factor, f \* bΟ± , and the activation energy, E\* ab , of the b-relaxation rate both increase significantly (