The rheological behavior of a nematic polymethacrylate containing an azobenzene side group was investigated. The time-temperature superposition principle was found to hold over a large temperature range, as no discontinuities were detected at the isotropic-nematic transition temperature, despite the relatively high molar mass of the polymer. A direct proof of the unentangled behavior of the polymer is provided, which stems from a dynamic model able to predict the relaxation mechanisms by simply knowing the molar mass distribution of the polymer sample.
Autori interni: | |
Autori: | Andreozzi L; Autiero C; Faetti M; Giordano M; Zulli F; Galli G |
Titolo: | Unentangled Rheological Behavior of a Nematic Azobenzene Polymethacrylate |
Anno del prodotto: | 2009 |
Digital Object Identifier (DOI): | 10.1080/15421400802713694 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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