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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Dielectric investigation of organic-inorganic hybrid based on titanium oxocluster-cross linked elastomer
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Dielectric investigation of organic-inorganic hybrid based on titanium oxocluster-cross linked elastomer

机译：钛氧簇簇交联弹性体对有机-无机杂化材料的介电研究

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摘要

In this paper, we have prepared new type of organic-inorganic hybrid materials based on covalent bond between the two constituents: elastomer and titanium oxocluster. Commercial hydrogenated acrylonitrile-butadiene rubber (HNBR)-Therban (R) 3407 was selected as the matrix for mixing the titanium oxocluster. Three different samples containing the elastomer and peroxide, elastomer, peroxide and titanate, and elastomer and titanate, respectively were prepared. The dielectric permittivity have been scanned over a wide range of frequencies and temperatures in order to determine the how the titanate and the peroxide influences the molecular mobility. Complementary DSC and mechanical analysis were performed. We found that the presence of titanates-compounds strongly influences the mobility of the tons and it's reflected in the low activation energy for the ionic conductivity. In spite that the glass transition temperature is held constant, the temperature dependence of the alpha process, as well as the free volume at the glass transition, the fragility parameter and the Delta Cp during the glass transition are strongly influenced by the composition.
机译：在本文中，我们基于弹性体和钛氧簇这两种成分之间的共价键制备了新型的有机-无机杂化材料。选择商业氢化丙烯腈-丁二烯橡胶（HNBR）-Therban（R）3407作为混合钛氧簇的基质。制备了分别包含弹性体和过氧化物，弹性体，过氧化物和钛酸酯以及弹性体和钛酸酯的三种不同样品。为了确定钛酸酯和过氧化物如何影响分子迁移率，已经在很宽的频率和温度范围内扫描了介电常数。进行了互补DSC和力学分析。我们发现钛酸酯化合物的存在强烈影响了吨的迁移率，并且反映在离子电导率的低活化能上。尽管玻璃化转变温度保持恒定，但是阿尔法过程的温度依赖性以及玻璃化转变时的自由体积，玻璃化转变期间的脆性参数和ΔCp受到组成的强烈影响。

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