以BMA-MA共聚物为成膜树脂的光致聚合物材料的全息性能  

The Influence of Holographic Recording Characteristics of Photopolymers with BMA-MA Copolymers as the Binder

作　　者：徐成刚[1,2] 王跃川[2] 朱建华[3] 

机构地区：[1]四川师范大学化学与材料科学学院,四川成都610068 [2]高分子材料工程国家重点实验室(四川大学),四川成都610065 [3]四川大学信息光学研究所,四川成都610064

出　　处：《高分子材料科学与工程》2008年第10期138-141,146,共5页Polymer Materials Science & Engineering

基　　金：四川省科技厅科研资助项目(2006J13-002);四川省科技厅科研资助项目(05JY029-123);四川省教育厅科研资助项目(2005C010)

摘　　要：采用溶液聚合法合成了水溶性的甲基丙烯酸丁酯-甲基丙烯酸(BMA-MA)共聚物,以这种共聚物为成膜树脂制备了光致聚合物全息材料,研究了光致聚合物全息材料的光敏性、衍射效率、空间频率响应、折射率调制度、曝光能量常数等全息性能。结果表明,在记录信号空间频率为1580 cy/mm时,以BMA-MA共聚物为成膜树脂的光致聚合物全息材料的灵敏度可达15 mJ/cm2,最大衍射效率为92.8%,曝光能量常量为10.9 mJ/cm2,衍射效率随所记录信号空间频率的增加而降低,材料的最大折射率调制度为2.85×10-3,是一种具有一定应用前景的光致聚合物全息材料。Water soluble copolymers composed of n-butyl methaerylate （MA） were synthesized by solution polymerization, photopolymers for （BMA） and methacrylic acid holographic recording with these copolymers as the binders were prepared; the photosensitivity, reflective efficiency, space resolution, exposure energy constant and exposure time constant of the as synthesized photopolymer were studied. The results reveal that the photosensitivity of the photopolymers is up to 15 mJ/cm2, the maximum reflection efficiency is 92.8 %, the maximum refractive index modulation is 2.85×10^-3, the exposure energy constant is 10.9 mJ/cm2 under the recording space frequency of 1580 cy/ ram; moreover the reflective efficiency of the photopolymer is decreased companied with the increasing of the recording space frequency. Our results imply that the as-synthesized photopolymer is one of promising candidates for applied holographic materials.

关 键 词：甲基丙烯酸丁酯-甲基丙烯酸共聚物 光致聚合物 全息性能 

分 类 号：TN204[电子电信—物理电子学]