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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 >Brillouin spectroscopy measurements on hybrid inorganic-organic materials obtained from aluminum and zirconium alkoxides
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Brillouin spectroscopy measurements on hybrid inorganic-organic materials obtained from aluminum and zirconium alkoxides

机译：铝和锆的醇盐杂化无机-有机材料的布里渊光谱测量

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Brillouin spectroscopy was used for measuring the sound velocity through hybrid inorganic-organic polymeric materials obtained from the polymerization of 2-hydroxyethylmethacrylate (HEMA) modified by zirconium and aluminum alkoxides. Young's modulus E, shear modulus G, bulk modulus B and Poisson's ratio v were calculated for the pure poly-HEMA, in a good agreement with the elastic constants measured by four point flexural experiments. The sound velocity measurements on the hybrid materials indicate that the elastic modulus of pure poly-HEMA is higher than those of the hybrids, almost irrespective of the concentration of inorganic compounds. This trend is confirmed by the results of the four points flexural tests performed on the same samples. The findings have been tentatively explained on the basis of the structural change in the polymeric network, due to the presence of the inorganic domains. (C) 2003 Elsevier B.V. All rights. reserved. [References: 10]
机译：布里渊光谱法用于测量通过由锆和铝的醇盐改性的甲基丙烯酸2-羟乙酯（HEMA）的聚合反应获得的无机-有机杂化聚合物材料的声速。计算了纯聚-HEMA的杨氏模量E，剪切模量G，体积模量B和泊松比v，这与通过四点弯曲实验测得的弹性常数非常吻合。在杂化材料上的声速测量结果表明，几乎与无机化合物的浓度无关，纯聚HEMA的弹性模量都比杂化材料的高。通过对相同样品进行的四点弯曲测试的结果证实了这种趋势。由于存在无机域，已经根据聚合物网络中的结构变化对结果进行了初步解释。 （C）2003 Elsevier B.V.保留所有权利。保留。 [参考：10]

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