Synthesis and Characterization of Functional Nano Particles-Organic Hybrid Film

功能纳米粒子-有机杂化薄膜的合成与表征

• 批准号: 12650670
• 负责人: YOGO Toshinobu
• 金额: $ 2.3万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12650670/
• 关键词: Barium titanate; Hybrid; Complex alkoxides; Metal-organic compounds; Hydrolysis; 重合; 磁性微粒子

Functional nano particle-organic hybrid has been receiving great attention as a newly imerging material. BaTi03 was selected as a functional nano particle.(1)BaTi03(BT) precursor was successfully synthesized from barium-organic and titanium alkoxide and a polymerizable ligand.(2) The formation conditions of nano-crystalline BaTi03 particles were established. The precursor was hydrolyzed and polymerized under the controlled reaction conditions. The polymerization process was analyzed by IR and NMR spectroscopy. The formation conditions of nano-sized BT particles below 100 C were investigated. The crystalline particles in the organic matrix were analyzed by XRD,SAD and EDX. The particle size was found to depend upon the polymerization and hydrolysis conditions.(3) Transparent films of BT particle-organic hybrid were synthesized. The absorption spectra of films revealed a blue-shift due to quantum size effect. The hybrid showed a prominent electro-rheological effect depending upon the kind of organic ligands. The fibril structure of hybrid in the ER fluid during applying DC voltage was confirmed by optical microscope. The relation between the processing conditions of BT-organic hybrid and its novel dielectric and optical properties has been established.

功能纳米颗粒-有机杂化材料作为一种新型的浸渍材料，受到了人们的广泛关注。选择BaTi03作为功能纳米粒子。(1)以有机钛醇盐和可聚合配体为原料，成功地合成了BaTi03(BT)前驱体。(2)确定了纳米BaTi03粒子的形成条件。在控制的反应条件下，对前驱体进行了水解和聚合。用红外光谱和核磁共振光谱对聚合过程进行了分析。研究了温度低于100℃时纳米Bt粒子的形成条件。用X射线衍射仪、扫描电子显微镜和能谱分析了有机基质中的晶态粒子。Bt颗粒-有机杂化透明膜的制备得到了Bt颗粒-有机杂化透明膜。由于量子尺寸效应，薄膜的吸收光谱发生了蓝移。杂化产物表现出显著的电流变效应，这与有机配体的种类有关。用光学显微镜证实了在电流变液中施加直流电压时，杂化材料中的纤维结构。建立了BT-有机杂化材料的制备条件与其新颖的介电性能和光学性能之间的关系。

项目成果

S.Hirano, T.yogo, W.sakamoto, S.Yamada, T.Nakamura, T.Yamamoto, H.Ukai: "In-situ processing of elctroceramic fine particles/polymer hybrids"Journal of European Ceramic Society. 21. 1479-1483 (2001)

S.Hirano、T.yogo、W.sakamoto、S.Yamada、T.Nakamura、T.Yamamoto、H.Ukai：“电陶瓷细颗粒/聚合物混合物的原位加工”欧洲陶瓷学会杂志。

平野真一, 余語利信, 坂本 渉: "ナノセラミック粒子/有機ハイブリッドの創製"Ceramic Data Book 2001. 29. 31-34 (2001)

Shinichi Hirano、Toshinobu Yogo、Wataru Sakamoto：“纳米陶瓷颗粒/有机混合物的创建”陶瓷数据手册 2001. 29. 31-34 (2001)

S.Hirano, T : Yogo, W.Sakamoto, S.Yamada, T. Nakamura, T.Yamaraoto, H.Ukai f: "In-site processing of electroceraraic fine partiIces/ polymer hybrid"Jouranl of European Ceramic Society. 21. 1479-1483 (2001)

S.Hirano, T：Yogo、W.Sakamoto、S.Yamada、T. Nakamura、T.Yamaraoto、H.Ukai f：“电陶瓷细颗粒/聚合物混合物的现场处理”欧洲陶瓷学会杂志。

平野眞一, 余語 利信, 坂本 渉: "ナノセラミック粒子/有機ハイブリッドの創製"Ceramic Daa Book 2001. 29. 31-34 (2001)

Shinichi Hirano、Toshinobu Yogo、Wataru Sakamoto：“纳米陶瓷颗粒/有机混合物的创建”Ceramic Daa Book 2001. 29. 31-34 (2001)

S.Hirano, T.Yogo, W.Sakamoto: "Synthesis of ceramic nanopart'icle/organic hybrid"Ceramic Data Book. 2001. 31-34 (2001)

S.Hirano、T.Yogo、W.Sakamoto：“陶瓷纳米颗粒/有机杂化物的合成”陶瓷数据书。