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Effects of chain-transferring thiol functionalities on the performance of nanoparticle-polymer composite volume gratings

机译:链转移硫醇官能度对纳米粒子-聚合物复合体光栅性能的影响

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摘要

We report influences of varying functionalities of thiols as chain transfer agents on the spatial frequency response, polymerization shrinkage, and thermal stability of a volume grating recorded in a photopolymerizable ZrO2 nanoparticle-polymer composite film. It is shown that a substantial increase in the saturated refractive index modulation is realized at high spatial frequencies by doping with multifunctional thiols. Moreover, the incorporation of multifunctional thiols considerably suppresses polymerization shrinkage of recorded volume gratings and thermal changes in refractive index and film thickness as compared with the case of mono-thiol. These results indicate that multifunctional thiols provide effective control of the properties of nanoparticle-polymer composite volume gratings for various applications in light and neutron optics. (C) 2014 Optical Society of America
机译:我们报告了硫醇作为链转移剂的功能变化对空间频率响应,聚合收缩和热稳定性的体积光栅记录在可光聚合的ZrO2纳米粒子-聚合物复合膜中记录的影响。已经表明,通过掺杂多功能硫醇,在高空间频率下实现了饱和折射率调制的显着增加。此外,与单硫醇的情况相比,多官能硫醇的结合大大抑制了记录的体积光栅的聚合收缩以及折射率和膜厚度的热变化。这些结果表明,多功能硫醇可有效控制纳米粒子-聚合物复合体光栅的特性,以用于光和中子光学领域的各种应用。 (C)2014年美国眼镜学会

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