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:||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|