主要研究纳米颗粒改性甲基丙烯酸甲酯预聚物(PMMA)的工艺,以及光波导薄膜的制备技术和性能。具体采用机械混合方式进行纳米颗粒掺杂和旋涂技术,旨在提高PMMA光波导层的热稳定性和折射率,并优化实验工艺条件使光波导薄膜达到透明、均匀、致密及无气孔的要求,从而降低其光传输损耗。实验在玻璃和硅基片上制备了纳米改性的PMMA光波导薄膜,并利用各种先进的测试手段对其进行了性能测量和表征分析,结果表明:纳米SiO2颗粒能够大幅度地提高PMMA光波导层的热稳定性和玻璃化转变温度Tg,而纳米TiO2颗粒使其折射率也有显著的提高。In this paper, the modification process of PMMA with nano-particles and the preparation of PMMA optical waveguide thin-films were studied. By taking the film spinning technology and the mechanic-mixing modification process with nano-particals, this work aimed at improving the thermal stability and the refractive index of PMMA and making its optical waveguide thin-films with well-distributed compact and less-blister. The configuration and properties of PMMA thin -films were observed and analyzed by different advanced technologies. The results show that nano-silicon dioxide can improve its thermal stability as well as Tg greatly, and nano titanium dioxide can increase the refractive index of PMMA.福建省青年科技人才创新项目资金资助(2001J024
