光学学报, 2007, 27 (1): 26, 网络出版: 2007-01-22   

含氟红敏光致聚合物全息材料的组成优化

Composition Optimization of Fluoro-Containing Red-Sensitive Photopolymer Holographic Materials
作者单位
1 四川大学高分子材料工程国家重点实验室, 成都 610065
2 四川师范大学化学学院, 成都 610068
3 四川大学信息光学研究所, 成都 610064
摘要
用低折射率的含氟共聚物为光致聚合物全息材料的成膜物, 以增加全息记录材料折射率的空间可调制程度。用溶液聚合法合成了低折射率的水溶性甲基丙烯酸2,2,3,3四氟丙酯甲基丙烯酸共聚物(折射率为1.441),以该共聚物为成膜物质, 丙烯酰胺为单体、亚甲基蓝为光敏染料、三乙醇胺为引发剂配制了光致聚合物薄膜; 经过对光致聚合物组成构成的优化, 在空间分辨力为1580 lp/mm时, 光致聚合物薄膜的灵敏度约为19 mJ/cm2, 衍射效率可达93%, 两者均优于以聚乙烯醇(PVA)为成膜物质的光致聚合物材料。
Abstract
Fluoro-containing polymer with low refractive index was used as the film-forming substance photopolymer holographic material to increase the spatial modulation range of its refractive index. Water soluble, fluoro-containing polymer with low reflective index derived from the copolymers of 2,2,3,3-tetrafluoropropyl methacrylate and methacrylic acid was prepared. The above polymer with low reflective index was used as the film-forming component, together with acrylamide as monomer, methylene blue as light-sensitive dye and triethanol amine as photo-initiator, for the preparation of photopolymer films for holographic recording. The photopolymer with optimized composition exhibited high sensitivity of 19 mJ/cm2 and high diffraction efficiency of 93% at spatial resolution of 1580 lp/mm, better than that with water soluble polyvinyl alcohol (PVA) as the film-forming substance.
参考文献

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徐成刚, 朱建华, 王跃川. 含氟红敏光致聚合物全息材料的组成优化[J]. 光学学报, 2007, 27(1): 26. 徐成刚, 朱建华, 王跃川. Composition Optimization of Fluoro-Containing Red-Sensitive Photopolymer Holographic Materials[J]. Acta Optica Sinica, 2007, 27(1): 26.

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