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Dielectric characterization of a thermotropic liquid crystalline copolyesteramide: 2. Orientation and crystallinity

机译:热致液晶共聚酯酰胺的介电特性:2.取向和结晶度

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摘要

The dielectric characterization of a thermotropic liquid crystalline copolyesteramide was extended. The influence of orientation and crystallization was studied. An effect of the draw ratio on the dielectric properties in the transverse direction was hardly found. However, the orientation of the sample in the electric field (parallel or perpendicular) showed a significant effect. The birefringence predicted from the dielectric data at high frequencies agrees well with the optical value. Annealing of extruded and compression-molded samples resulted in an increase of the ct relaxation peak.
机译:扩展了热致液晶共聚酯酰胺的介电特性。研究了取向和结晶的影响。几乎没有发现拉伸比对横向介电性能的影响。但是,样品在电场中的方向(平行或垂直)显示出明显的影响。根据高频介电数据预测的双折射与光学值非常吻合。挤压和压模样品的退火导致ct弛豫峰的增加。

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