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G. Griffin (1994)
Chemistry and technology of biodegradable polymers.
C. Moynihan (1994)
Analysis of electrical relaxation in glasses and melts with large concentrations of mobile ionsJournal of Non-crystalline Solids
R. Coelho (1991)
On the static permittivity of dipolar and conductive media — an educational approachJournal of Non-crystalline Solids
X. Lu, H. Jain (1994)
Low temperature a.c. conductivity of oxide glassesJournal of Physics and Chemistry of Solids, 55
S. Elliott (1987)
A.c. conduction in amorphous chalcogenide and pnictide semiconductorsAdvances in Physics, 36
W. Hasz, C. Moynihan, P. Tick (1994)
Electrical relaxation in a CdF2LiFAlF3PbF2 glass and meltJournal of Non-crystalline Solids
P. Hedvig (1977)
Dielectric spectroscopy of polymers
We present results of dielectric investigation of poly(3-hydroxybutyrate) (PHB) semi-crystalline polymer. The data obtained are treated in the view of electric modulus formalisms in order to correlate the effects of the conductivity on the net dielectric relaxation phenomena. The results reveal that the conductive relaxation processes contribution in the low frequency region is much larger than in the high frequency region. At high temperatures (above the glass transition temperature), the electrical properties are strongly influenced by the space charge. Finally the plot of the complex electric modulus for a given temperature in Argand's plane shows that the conductive processes are reflected by an arc at low frequency which agrees with the model of Coelho.
The International Journal of Polymeric Materials and Polymeric Biomaterials – Taylor & Francis
Published: Oct 13, 2008
Keywords: conductive processes; dielectric relaxation; electric modulus; PHB
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