Nearly constant dielectric loss behavior in poly(3-hydroxybutyrate-co-3-hydroxyvalerate) biodegradable polyester
作者： Shanming Ke , Haitao Huang , Li Ren , Yingjun Wang
DOI: 10.1063/1.3125271
关键词: Poly(3-hydroxybutyrate)-co-(3-hydroxyvalerate) 、 Electrical resistivity and conductivity 、 Polymer 、 Constant (mathematics) 、 Dielectric loss 、 Dielectric 、 Dielectric spectroscopy 、 Biodegradable polyester 、 Materials science 、 Chemical engineering 、 Polymer chemistry
摘要: The measurement of dielectric spectroscopy over a broad frequency range 0.01–107 Hz has been conducted to examine the segmental motions in poly[3-hydroxybutyrate-co-3-hydroxyvalerate] (PHBV) biopolymers. ac conductivity at either low temperatures or high frequencies is almost temperature independent, indicating clearly that nearly constant loss (NCL) phenomenon also takes place polymers. respective data were analyzed by adding NCL term Jonscher relation. PHBV discussed be originated from vibrational motion model. may have potential application as biodegradable material.
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