Synthesis of PbTiO_3/organic hybrid from metalorganic compounds
Synthesis of PbTiO_3/organic hybrid from metalorganic compounds
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金属有机化合物合成PbTiO_3/有机杂化物
DOI：
10.1557/jmr.1999.0443
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发表时间：
1999
影响因子：
2.7
通讯作者：
S. Hirano
中科院分区：
文献类型：
--
作者：
T. Yogo;H. Ukai;W. Sakamoto;S. Hirano
通过金属有机化合物在100℃以下的水解和聚合合成了纳米晶PbTiO_3颗粒/有机杂化物。以甲基丙烯酸铅和异丙醇钛为原料合成了PbTiO_3前驱体。 H 和 Pb 核磁共振波谱证实了 Pb-Ti 复合醇盐的形成。水解的 Pb-Ti 醇盐进行聚合，产生 PbTiO_3 颗粒/低聚物混合物。有机基质包括纳米尺寸的晶体颗粒，具体取决于水解条件。通过电子衍射和能量色散X射线分析，纳米晶颗粒被鉴定为钛酸铅。纳米级PbTiO_3/低聚物混合物的介电常数在10 kHz 时为5.2。
A nanocrystalline PbTiO_3 particle/organic hybrid was synthesized through hydrolysis and polymerization of metalorganic compounds below 100 °C. The PbTiO_3 precursor was synthesized from lead methacrylate and titanium isopropoxide. The formation of a Pb–Ti complex alkoxide was confirmed by H and Pb nuclear magnetic resonance spectroscopy. Hydrolyzed Pb–Ti alkoxide was polymerized, yielding the PbTiO_3 particles/oligomer hybrid. The organic matrix included nano-sized crystalline particles, depending on the hydrolysis conditions. The nanocrystalline particles were identified to be lead titanate by electron diffraction and energy-dispersive x-ray analysis. The dielectric constant of the nanometer-sized PbTiO_3/oligomer hybrid was 5.2 at 10 kHz.