ELECTRICAL RELAXATION IN ULTEM(R) AND ULTEM(R) CONTAINING MESOPOROUS SILICA

Mesoporous silica has been added to Ultem(R) 1000 polyetherimide using solution casting. The mesoporous silica that was added was either uncoated or coated with polystyrene. Audio frequency dielectric relaxation studies were then carried out over the temperature range 5.5 to 550 K. Several interesti...

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Bibliographic Details
Published inAIP Conference Proceedings pp. 21 - 22
Main Authors Turo, Andrew, Edmondson, Charles E, Lomax, Joseph F, Bendler, John T, Fontanella, John J, Wintersgill, Mary C
Format Conference Proceeding
LanguageEnglish
Published 21.09.2008
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Summary:Mesoporous silica has been added to Ultem(R) 1000 polyetherimide using solution casting. The mesoporous silica that was added was either uncoated or coated with polystyrene. Audio frequency dielectric relaxation studies were then carried out over the temperature range 5.5 to 550 K. Several interesting results were obtained. First, the uncoated mesoporous silica caused essentially no change in the relaxation spectrum of pure Ultem(R). The polystyrene coated mesoporous silica caused rather large changes. The most striking example is the introduction of a new relaxation. This relaxation occurs at about 150 K and 1000 Hz as showing in fig. 1 via the open circles.
Bibliography:SourceType-Conference Papers & Proceedings-1
ObjectType-Conference Paper-1
content type line 25
ISBN:9780735405707
0735405700
ISSN:0094-243X
DOI:10.1063/1.2989009