Development of

发展

基本信息

  • 批准号:
    11555251
  • 负责人:
  • 金额:
    $ 8.51万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    1999
  • 资助国家:
    日本
  • 起止时间:
    1999 至 2000
  • 项目状态:
    已结题

项目摘要

Recently, engineers develop technology and materials for opto-telecommunication, because they will satisfy demands. One of the most important physical properties for the materials is refractive index. Refractive index depends on linear polarizability by the Lorenlz-Lorenz equation. The photochemical reaction which breaks the π-conjugated system can reduce the refractive index of the material because the linear polarizability decreases. The linear, polarizability variations in the nitrone derivatives were predicted by MOPAC calculation. Furthermore, we demonstrate that a photochemical reaction can create various distributions of refractive index in the polymer.We prepared the PMMA films containing the nitrone derivatives by spin-coating method. UV irradiation decreased refractive indices of the film exponentially with the irradiation time. The change in the refractive index was large enough to apply to optical devices. Electronic structural change of DMAPN and refractive indices of the … More film before and after UV irradiation were evaluated by UV absorption spectra and m-line method, respectively. The UV irradiation decreased λ_<max> at 380 nm in the absorption spectra, which is attributed to nitrone, and the refractive indices exponentially with irradiation time. The change of refractive indices reached 0.028. It is shown that the relative variation of refractive index can be predicted based on calculated polarizability variation, in the case of photoisomerization like the reaction of nitrone to oxadirizine.The refractive index profile upon depth of the film was investigated by measuring refractive indices of stacked DMAPN/PMMA films. When UV with a power of 10.7 mW/cm^2 irradiated upon three stacked DMAPN/PMMA films for 35 s, variation of the refractive index change showed a quadratic profile. The refractive index profile with various irradiation times can be accounted with the combination of the chemical kinetics with the steady state approximation and Lambert-Beer's law. Thus, the photochemical reaction can be used to control the refractive index distribution in polymer. Less
近年来,工程师们开发光通信技术和材料,因为它们将满足需求。材料的最重要的物理性质之一是折射率。折射率取决于线性极化率由Lorenlz-Lorenz方程。光化学反应破坏了π共轭体系,使材料的线极化率降低,从而降低了材料的折射率。通过MOPAC计算预测了硝酮衍生物的线性极化率变化。此外,我们证明了光化学反应可以在聚合物中产生不同的折射率分布。我们用旋涂法制备了含有硝酮衍生物的PMMA薄膜。紫外光照射使薄膜的折射率随照射时间呈指数下降。折射率的变化大到足以应用于光学器件。DMAPN的电子结构变化和折射率 ...更多信息 用紫外吸收光谱和m线法分别对紫外辐照前后的薄膜进行了表征。紫外光照射使<max>吸收光谱中380 nm处的吸收峰λ_(max)减小,这归因于硝酮的吸收,折射率随照射时间呈指数关系下降。折射率的变化达到0.028。结果表明,在光致异构化反应(如硝酮与恶二嗪反应)的情况下,折射率的相对变化可以根据计算的极化率变化来预测.通过测量DMAPN/PMMA叠层薄膜的折射率,研究了折射率随薄膜厚度的变化.当功率为10.7 mW/cm ^2的紫外光照射三层DMAPN/PMMA薄膜35 s时,折射率变化呈现二次曲线变化。不同照射时间的折射率分布可以用化学动力学与稳态近似和朗伯-比尔定律相结合来解释。因此,光化学反应可用于控制聚合物中的折射率分布。少

项目成果

期刊论文数量(44)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
H.W.Huang, K.Horie, M.Tokita, J.Watanabe: "Fluorescence study on intermolecular complex formation between mesogenic biphenyl moieties of main-chain thermotropic L.C. polyesters."Macromol. Chem. Phys.. 199. 1851-1858 (1998)
H.W.Huang、K.Horie、M.Tokita、J.Watanabe:“主链热致液晶聚酯介晶联苯部分之间分子间复合物形成的荧光研究。”Macromol。
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    0
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M.Tokita, K.Osada, J.Watanabe: "Thermotropic Liquid Crystals of Main-Chain Polyesters Having a Mesogenic 4,4'-Bibenzoate Unit. 10 Distinct orientation of molecules in a thin SmCA film stretched from isotropic melt, providing evidence for the biaxiallity o
M.Tokita、K.Osada、J.Watanabe:“具有介晶 4,4-联苯甲酸酯单元的主链聚酯的热致液晶。10 从各向同性熔体拉伸的 SmCA 薄膜中分子的不同方向,为
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    0
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Takeshi KADA: "紫外光で屈折率が変化する高分子材料の開発"機能材料. 20・12. 28-32 (2000)
加田武:“折射率随紫外线变化的高分子材料的开发”功能材料20・12(2000)。
  • DOI:
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    0
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Takeshi KADA: "Refractive Index Change of Nitron Derivatives by Use of Photochemical Reaction"Journal of Nonlinear Optics Special Issue. 24. 111-116 (2000)
加田武:“利用光化学反应改变硝基衍生物的折射率”非线性光学杂志特刊。
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  • 影响因子:
    0
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Takeshi KADA: "ニトロン誘導体と光素子への応用"オプトロニクス. 19・10. 127-132 (2000)
加田武:“硝酮衍生物及其在光学器件中的应用”Optronics 19・132(2000)。
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    0
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MIYATA Seizo其他文献

MIYATA Seizo的其他文献

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{{ truncateString('MIYATA Seizo', 18)}}的其他基金

Studies on Nano-Electroplating using Liquid Membrane of Electrolyte Solution in Supercritical CO_2
超临界CO_2电解液液膜纳米电镀研究
  • 批准号:
    17360367
  • 财政年份:
    2005
  • 资助金额:
    $ 8.51万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of Portable Experimental Apparatus on Education of Polymer Physics
便携式高分子物理教学实验装置的研制
  • 批准号:
    14580182
  • 财政年份:
    2002
  • 资助金额:
    $ 8.51万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Lightwave manipulation by organic nonlinear optical materials
有机非线性光学材料的光波操纵
  • 批准号:
    07246104
  • 财政年份:
    1998
  • 资助金额:
    $ 8.51万
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas
Interaction Between Laser Light and Helical Structure of Chiral Polar Nematic Liquid Crystal
激光与手性极性向列液晶螺旋结构的相互作用
  • 批准号:
    10450360
  • 财政年份:
    1998
  • 资助金额:
    $ 8.51万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of Novel Light Emitting Device Consisting of C60 Polymer
C60聚合物新型发光器件的研制
  • 批准号:
    07555296
  • 财政年份:
    1995
  • 资助金额:
    $ 8.51万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
The Study on energy transfer and multi-photon absorption of organic and inorganic hybrid materials
有机无机杂化材料的能量传递和多光子吸收研究
  • 批准号:
    05452109
  • 财政年份:
    1993
  • 资助金额:
    $ 8.51万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
Development of highly efficient polymeric frequency doubler using novel fabrication technique of domain inversion.
使用新型域反转制造技术开发高效聚合物倍频器。
  • 批准号:
    05555253
  • 财政年份:
    1993
  • 资助金额:
    $ 8.51万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research (B)
The Study on Nonlinear Optical Properties in Superstructure Controlled Polymer-Dye (Guest-Host) Systems
超结构控制聚合物染料(客体-主体)体系非线性光学性质的研究
  • 批准号:
    02452073
  • 财政年份:
    1990
  • 资助金额:
    $ 8.51万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)
Studies on Synthesis and Practical Evaluation of High Functional Polymeric Materials
高功能高分子材料的合成及实用评价研究
  • 批准号:
    02045012
  • 财政年份:
    1990
  • 资助金额:
    $ 8.51万
  • 项目类别:
    Grant-in-Aid for international Scientific Research
Studies on Nonlinear Optical Effects of Polymers.
聚合物非线性光学效应的研究。
  • 批准号:
    60470101
  • 财政年份:
    1985
  • 资助金额:
    $ 8.51万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)

相似海外基金

Industry/University Cooperative Activities. Soluble Poly- silane Photoresists: A Mechanistic Study of Radiation Induced Processes
工业/大学合作活动。
  • 批准号:
    8796214
  • 财政年份:
    1986
  • 资助金额:
    $ 8.51万
  • 项目类别:
    Continuing Grant
Industry/University Cooperative Activities. Soluble Poly- silane Photoresists: A Mechanistic Study of Radiation Induced Processes
工业/大学合作活动。
  • 批准号:
    8416044
  • 财政年份:
    1985
  • 资助金额:
    $ 8.51万
  • 项目类别:
    Continuing Grant
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