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新型金属二硫烯基聚合物薄膜的合成、表征及介电性质

发表时间:2016-10-15  浏览量:1518  下载量:445
全部作者: 聂莉,任小明
作者单位: 南京工业大学化学与分子工程学院
摘 要: 基于聚合物的介质薄膜是目前电介质材料的研究热点。研究采用聚偏氟乙烯(polyvinylidene fluoride,PVDF)作为黏结剂,通过溶液延流法制备得到一种新型的二硫烯基聚合物薄膜。通过扫描电子显微镜(scanning electron microscope,SEM)对其形貌和结构进行研究,发现薄膜表面为近似多孔网状结构。通过紫外-可见吸收光谱研究其光学性质。通过介电和阻抗测试研究复合膜的介电性质,发现聚合物薄膜在温度高于383 K时存在热致介电弛豫行为。通过进一步研究发现,介电弛豫与离子导电性相关。
关 键 词: 高分子化学;聚二甲基二丙烯基氯化铵;聚偏氟乙烯;薄膜;介电弛豫
Title: Synthesis, characterization and dielectric properities for a new metal-dithiolate-based polymer film
Author: NIE Li, REN Xiaoming
Organization: College of Chemistry and Molecular Engineering, Nanjing Tech University
Abstract: Dielectric films based on polymer have currently attracted great attention in the field of dielectric materials. A new nickel-maleonitriledithiolene polymer film was obtained in the way of solution delay flow by adding polyvinylidene fluoride (PVDF) as binder. The characteristics of morphology and structure were observed by scanning electron microscope (SEM). The results indicated the porous network structure of the polymer film. The optical properties were researched by ultraviolet-visible absorption spectroscopy. The dielectric properties of the composite film were investigated. It showed a clear dielectric relaxation process which occured at the temperature of above 383 K. The impedance spectra were further investigated to reveal that the dielectric relaxation is related to the ions conductance.
Key words: polymer chemistry; poly(diallyldimethylammonium chloride); polyvinylidene fluoride; thin film; dielectric relaxation
发表期数: 2016年10月第19期
引用格式: 聂莉,任小明. 新型金属二硫烯基聚合物薄膜的合成、表征及介电性质[J]. 中国科技论文在线精品论文,2016,9(19):2016-2022.
 
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