Dielectric relaxation in a thermosetting polyimide modified with a thermoplastic polyimide

Relaxation processes in glass-fiber-reinforced composites with a polymer matrix based on blends of thermosetting and thermoplastic polyimides are studied via dielectric-relaxation spectroscopy. For all investigated blends, two relaxation processes related to the β relaxation of different fragments o...

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Bibliographic Details
Published in:Polymer science. Series A, Chemistry, physics Chemistry, physics, 2011-10, Vol.53 (10), p.963-967
Main Authors: Belov, D. A., Stefanovich, S. Yu, Yablokova, M. Yu
Format: Article
Language:English
Subjects:
Chains (polymeric)
Chemistry
Chemistry and Materials Science
Composites
Dielectric relaxation
Fragments
Glass fiber reinforced plastics
Polyimide resins
Polymer blends
Polymer Sciences
Spectroscopy
Thermoplastic resins
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Summary:Relaxation processes in glass-fiber-reinforced composites with a polymer matrix based on blends of thermosetting and thermoplastic polyimides are studied via dielectric-relaxation spectroscopy. For all investigated blends, two relaxation processes related to the β relaxation of different fragments of the polymer chain are found. Linear flexiblechain polyimide incorporated into the polymer matrix serves as a plasticizer.
ISSN:0965-545X
1555-6107
DOI:10.1134/S0965545X11100014