旋涂-逐层自组装制备光响应性聚丙烯酸酯类偶氮聚电解质多层膜  

SPIN SELF-ASSEMBLY OF A POLYACRYLATE-BASED AZO POLYELECTROLYTE AND MULTILAYER PHOTORESPONSIVE BEHAVIOR

作　　者：和亚宁[1] 李昕阳[1] 范鹏伟[1] 王晓工[1] 

机构地区：[1]清华大学化工系高分子研究所教育部先进材料重点实验室,北京100084

出　　处：《高分子学报》2007年第3期289-292,共4页Acta Polymerica Sinica

基　　金：国家自然科学基金(基金号20504017);清华大学基础研究基金(基金号JCqn2005032)资助项目

摘　　要：Multilayer films of a polyacrylate-based azo polyelectrolyte were fabricated by a spin self-assembly method.By spin-coating solutions of the azo polyelectrolyte in DMF/H2O mixed solvent and polydiallyldimethylammonium chloride（PDAC） in water,high quality multilayer films were obtained.Dichroism was optically induced in the self-assembled films under the irradiation of a polarized Ar+ laser beam at 488 nm.The dichroism was easily detected from UV-Vis spectra and exhibited long term stability.The orientational order parameter obtained was about 0.06 for the film.With interfering illumination of Ar+ laser beams,significant surface relief gratings formed on the self-assembled multiplayer films were observed.Multilayer films of a polyacrylate-based azo polyelectrolyte were fabricated by a spin self-assembly method. By spin-coating solutions of the azo polyelectrolyte in DMF/H2O mixed solvent and poly- （diallyldimethylammonium chloride） （PDAC） in water, high quality multilayer films were obtained. Dichroism was optically induced in the self-assembled films under the irradiation of a polarized Ar^＋ laser beam at 488 nm. The dichroism was easily detected from UV-Vis spectra and exhibited long term stability. The orientational order parameter obtained was about 0.06 for the film. With interfering illumination of Ar^＋ laser beams, significant surface relief gratings formed on the self-assembled multiplayer films were observed.

关 键 词：旋涂 自组装 偶氮聚电解质 表面起伏光栅 

分 类 号：O631.3[理学—高分子化学]