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Experimental results on the correlation between cross-linking, polarization and space charge in PMMA

✍ Scribed by Notingher, P; Malrieu, S; Prez, F Du; Schué, F; Toureille, A

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 89 KB
Volume: 48
Category: Article
ISSN: 0959-8103
DOI: 10.1002/(sici)1097-0126(199901)48:1<5::aid-pi129>3.0.co;2-c

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✦ Synopsis

The inÑuence of cross-linking upon polarization and space charge is investigated. PMMA samples of di †erent cross-linking degrees were prepared. The samples were poled under several DC Ðelds and temperatures. Space-charge measurements were made by the thermal-step method. The "clean-ingÏ technique was used to separate dipolar phenomena and injected charge. The results show that cross-linking a †ects the state of polarization of the samples and could favour spacecharge accumulation.

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