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首页> 外文期刊>Journal of Applied Polymer Science >Relaxation dynamic and electrical mobility for poly(methyl methacrylate)-polyaniline composites
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Relaxation dynamic and electrical mobility for poly(methyl methacrylate)-polyaniline composites

机译：用于聚（甲基丙烯酸甲酯） - 聚亚胺复合材料的弛豫动态和电动迁移率

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摘要

Composites of emeraldine form of polyaniline (PAni) and poly(methyl methacrylate) (PMMA) are prepared by emulsion polymerization method in definite ratios. The chemical structure of the samples and their morphologies have been investigated by different techniques including FTIR, UV-vis, XRD, SEM, and TGA. Enhancement in thermal stability of the obtained composites by PAni additions has been confirmed. Alpha analyzer, in frequency range 0.1 Hz to 20 MHz, was employed to investigate the molecular dynamics of the prepared samples and the accompanied electrical conductivity at temperatures ranging from 223 to 423 K. Conductivity investigations showed that mobility has the more dominant effect on the charge transportation. The dynamic peak at lower temperatures of the PMMA has high activation energy (83.8 kJ/mol). While, Maxwill-Wagner-Siller process due to the interfacial polarization in the composites has only 7.5 kJ/mol activation energy. This is a clear indication of the ease of the investigated dynamic. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45415.
机译：通过在明确比率的乳液聚合法制备中制备欧二生胺（PANI）和聚（甲基丙烯酸甲酯）（PMMA）的复合材料。通过包括FTIR，UV-Vis，XRD，SEM和TGA的不同技术研究了样品的化学结构及其形态。已经证实了通过PANI添加的所得复合材料的热稳定性的增强。 α分析仪，在0.1Hz至20MHz的频率范围内，用于研究制备的样品的分子动力学和伴随在223至423k的温度下的伴随的电导率。电导率调查显示，移动性对电荷具有更大的效果运输。 PMMA较低温度下的动态峰值具有高激活能量（83.8 kJ / mol）。虽然，由于复合材料中的界面极化导致的MaxWill-Wagner-Siller过程仅具有7.5kJ / mol激活能量。这是清楚地指示易于调查的动态。 （c）2017 Wiley期刊，Inc.J.Phill。聚合物。 SCI。 2017,134,45415。

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