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Experimental results on the correlation between cross‐linking, polarization and space charge in PMMA
Author(s) -
Notingher P,
Malrieu S,
Prez F Du,
Schué F,
Toureille A
Publication year - 1999
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/(sici)1097-0126(199901)48:1<5::aid-pi129>3.0.co;2-c
Subject(s) - space charge , polarization (electrochemistry) , dipole , materials science , thermal , chemical physics , charge (physics) , analytical chemistry (journal) , chemistry , physics , thermodynamics , organic chemistry , quantum mechanics , electron
The influence of cross‐linking upon polarization and space charge is investigated. PMMA samples of different cross‐linking degrees were prepared. The samples were poled under several DC fields and temperatures. Space‐charge measurements were made by the thermal‐step method. The ‘cleaning’ technique was used to separate dipolar phenomena and injected charge. The results show that cross‐linking affects the state of polarization of the samples and could favour space‐charge accumulation. © 1999 Society of Chemical Industry.