作　　者： ; ; ; ;

机构地区： 华南理工大学

出　　处： 《材料研究学报》 2005年第3期282-286,共5页

摘　　要： 合成了含手性碳原子的新型偶氮苯生色团,通过酰氯化反应制备出含偶氮苯生色团的单体,将所合成的单体与丙烯酸酯类单体进行自由基共聚得到以偶氮苯生色团为侧基的高分子.利用1HNMR、FTIR、UV-Vis吸收光谱,对所合成的单体及聚合物进行了结构表征.研究了所制备的聚合物的全光开关效应.结果表明,在激发光的照射下,通过聚合物中偶氮苯基团的顺-反-顺异构循环在聚合物材料中可形成光致各向异性;在较低驱动光功率(28.1mw)下这种聚合物具有良好的全光开关效应. A novel azobenzene chromophore containing chiral unit was synthesized and the corresponding monomer was obtained by acylation reaction. The polymer with pendant azobenzene chromophore was prepared through radical polymerization using the monomer and acrylate monomers. The monomer and the polymer were characterized using 1H NMR, FTIR, UV-Vis spectroscopy. Furthermore, the all-optical switching effect of the polymer was investigated experimentally. Upon the irradiation of pump beam, the repetition of cis-trans-cis photoisomerization of azobenzene groups leads to photoinduced anisotropy in the polymer. The all-optical switching effect can be realized in the polymer film at relatively low optical driving power (28.1 mW).

关 键 词： 有机高分子材料 偶氮苯 生色团 全光开关效应 光致异构

领　　域： [理学] [理学]