Title :
Dielectric spectroscopy of a commercial polyhydroxybutyratehydroxyvalerate copolymer
Author :
Pratt, G.J. ; Smith, M.J.A.
Author_Institution :
Melbourne Univ., Parkville, Vic., Australia
Abstract :
Contour maps of real relative permittivity and dielectric loss tangent over the ranges 0.1 Hz to 3 MHz and -175°C to +145°C for a commercial poly-β-hydroxybutyratehydroxyvalerate (PHBV) copolymer reveal four principal features. The region of loss associated with each feature occurs at a lower temperature than in the equivalent PHB homopolymer. Possible sources are suggested for the losses
Keywords :
Biodegradable materials; Capacitive sensors; Dielectric losses; Dielectric measurements; Electrochemical impedance spectroscopy; Mechanical factors; Microorganisms; Permittivity; Polymers; Temperature;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1994., Proceedings of the 4th International Conference on
Conference_Location :
Brisbane, Qld.
Print_ISBN :
0-7803-1307-0
DOI :
10.1109/ICPADM.1994.413981
