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首页> 外文学位 >Optical properties of polymetallocenes and fabrication of polymer composite microstructures.
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Optical properties of polymetallocenes and fabrication of polymer composite microstructures.

机译：聚金属茂的光学性质和聚合物复合材料微结构的制造。

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摘要

This work covers the general area of polymers and polymer-based microstructures and their optical properties. It also encompasses methods of fabricating polymer-based structures with a relevance to optical applications.; The refractive index of polymetallocenes was determined by ellipsometry. Using the refractive index, the molar refraction, a term describing the refractive power of a molecular entity, was calculated for the polymer repeat units. By comparing the molar refractions of polymetallocenes with different molecular structures, the role of the substituent groups, the metal atom and the inorganic spacer group (i.e. Si, Ge, Sn and P) on the optical properties of the polymers was demonstrated.; Next, disorder in colloidal crystals was examined. Disorder in colloidal crystals was induced by doping the crystals with guest particles that are larger or smaller than the host colloids. The changes in the structure and optical properties of the colloidal crystals were studied as a function of the concentration of guest particles as well as the size of the guest colloid relative to the host colloid. Qualitative information regarding the ordering of polydispersed colloid particles into crystals was obtained.; Colloidal crystals were next used as the scaffold to make inverse opals of lead sulfide nanocrystals. A method of infiltrating nanocrystals uniformly with high loading in the interstitial space of the colloidal crystals was developed. The colloidal crystals were characterized by optical transmission spectroscopy. The spectral shifts in the diffraction peak before and after infiltration were used to calculate the degree of infiltration of nanocrystals inside the interstitial space.; Next, a simple method of patterning nanocrystals two-dimensionally was demonstrated.{09}The method is based on the phase separation of nanocrystals from polymers during photopolymerization. The method yields a pattern of nanocrystal-rich and nanocrystal-poor areas in a polymer matrix. Polymerization conditions were optimized in order to enhance the features of the patterns.
机译：这项工作涵盖了聚合物和基于聚合物的微结构的一般领域及其光学性质。它还包括与光学应用有关的制造基于聚合物的结构的方法。聚金属茂的折射率通过椭圆偏振法测定。使用折射率，对聚合物重复单元计算摩尔折射率，该摩尔折射率是描述分子实体的折射率的术语。通过比较具有不同分子结构的聚金属茂的摩尔折射，证明了取代基，金属原子和无机间隔基（即Si，Ge，Sn和P）对聚合物光学性能的作用。接下来，检查胶体晶体的无序。通过用大于或小于主体胶体的客体颗粒掺杂晶体来诱发胶体晶体失序。研究了胶体晶体的结构和光学性质的变化与客体颗粒浓度以及客体胶体相对于主体胶体的尺寸的关系。获得关于多分散的胶体颗粒为晶体的有序的定性信息。接下来，将胶体晶体用作支架，以制备硫化铅纳米晶体的反蛋白石。开发了一种在胶体晶体的间隙空间内高负荷均匀渗透纳米晶体的方法。胶体晶体通过光学透射光谱法表征。渗透前后衍射峰的光谱位移用于计算间隙空间内纳米晶体的渗透程度。接下来，展示了一种二维二维构图纳米晶体的简单方法。{09}该方法基于光聚合过程中纳米晶体与聚合物的相分离。该方法在聚合物基质中产生富含纳米晶体和缺乏纳米晶体的区域的图案。优化聚合条件以增强图案的特征。

著录项

  • 作者

    Paquet, Chantal Jacinthe.;

  • 作者单位

    University of Toronto (Canada).;

  • 授予单位 University of Toronto (Canada).;
  • 学科 Chemistry Polymer.
  • 学位 Ph.D.
  • 年度 2006
  • 页码 142 p.
  • 总页数 142
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 高分子化学（高聚物）;
  • 关键词

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