A new kind of carbazole-based photorefractive polymer was prepared via a post-azo- coupling reaction. The structure of the polymer was characterized by IR, 1H NMR, UV-vis and GPC. The IR and UV-vis spectra demonstrate...A new kind of carbazole-based photorefractive polymer was prepared via a post-azo- coupling reaction. The structure of the polymer was characterized by IR, 1H NMR, UV-vis and GPC. The IR and UV-vis spectra demonstrated that azo group was grafted to the polymer in content of 15.56%. The molecular weight of the polymer as determined by GPC was higher than that of the polymer obtained by common method.展开更多
利用M iche lson干涉仪的工作原理及光折变聚合物的光敏特性,提出了用M iche lson干涉仪直接测量光折变聚合物折射率调制度的方法.利用制作的光折变聚合物样品,测得的数据与文献报道一致.分析了测量误差的影响因素,实验误差为3.78%,进...利用M iche lson干涉仪的工作原理及光折变聚合物的光敏特性,提出了用M iche lson干涉仪直接测量光折变聚合物折射率调制度的方法.利用制作的光折变聚合物样品,测得的数据与文献报道一致.分析了测量误差的影响因素,实验误差为3.78%,进而验证了该方法的可行性,并可以发展为光聚合物折射率调制度测量的通用平台.展开更多
文摘A new kind of carbazole-based photorefractive polymer was prepared via a post-azo- coupling reaction. The structure of the polymer was characterized by IR, 1H NMR, UV-vis and GPC. The IR and UV-vis spectra demonstrated that azo group was grafted to the polymer in content of 15.56%. The molecular weight of the polymer as determined by GPC was higher than that of the polymer obtained by common method.
文摘利用M iche lson干涉仪的工作原理及光折变聚合物的光敏特性,提出了用M iche lson干涉仪直接测量光折变聚合物折射率调制度的方法.利用制作的光折变聚合物样品,测得的数据与文献报道一致.分析了测量误差的影响因素,实验误差为3.78%,进而验证了该方法的可行性,并可以发展为光聚合物折射率调制度测量的通用平台.