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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 >Fast-sol-gel derived silsequioxane glasses embodying glycerol moieties: dielectric properties and morphology
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Fast-sol-gel derived silsequioxane glasses embodying glycerol moieties: dielectric properties and morphology

机译：包含甘油部分的快速溶胶凝胶衍生的倍半硅氧烷玻璃：介电性质和形态

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摘要

The fast-sol-gel synthetic route was utilized to prepare glassy matrices of varying porosity. Glycerol doping of these matrices was carried out at various stages of the sol-gel reaction. Dielectric spectroscopy data were collected from all these matrices, and interpreted in terms of various relaxation processes from which the internal morphology of the matrices could be deduced. Glycerol dopant added to the sol-gel-derived glass during preparation is adsorbed and partly chemically bound at the ends of the polymer-like chains of the matrix, acting as a cross-linking agent. It does not form bulk moieties at concentrations up to 2%. Cluster glycerol moieties are formed inside the glass at a concentration of 4%. (C) 2002 Elsevier Science B.V. All rights reserved. [References: 19]
机译：快速溶胶-凝胶合成路线用于制备孔隙率不同的玻璃状基质。这些基质的甘油掺杂在溶胶-凝胶反应的各个阶段进行。从所有这些矩阵中收集介电谱数据，并根据各种弛豫过程进行解释，从中可以推断出矩阵的内部形态。在制备过程中添加到溶胶-凝胶衍生的玻璃中的甘油掺杂剂被吸附并部分化学键合在基质的聚合物样链的末端，作为交联剂。浓度不超过2％时，它不会形成本体部分。在玻璃内部以4％的浓度形成簇状甘油部分。 （C）2002 Elsevier Science B.V.保留所有权利。 [参考：19]

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