含长取代基的咔唑与花生酸混合Langmuir膜及LB膜的研究

INVESTIGATION OF MIXED LANGMUIR FILMS AND LB FILMS OF SUBSTITUTED CARBAZOLE AND ARACHIDIC ACID

研究了５－三氰基乙烯基－Ｎ－十六烷基咔唑（ＴＨＣ）与花生酸（ＡＡ）混合Ｌａｎｇｍｕｉｒ膜及ＬＢ膜的结构特性．由π－Ａ曲线知，混合Ｌａｎｇｍｕｉｒ膜在压缩过程中有相变发生，ＬＢ膜的紫外吸收光谱表明咔唑分子间有相互作用，Ｘ射线衍射证明混合ＬＢ膜具有层状有序结构。

The structural features of the mixed Langmuir films and LB films of 5-tricyanovinyl-n-hexadecylcarbazole and arachidic acid have been studied. The results of the π-A curves indicate that a phase transition occurs during compressing.. The UV spectra of the mixed LB films show that carbazole molecules form H-aggregates in the condensed state. More than ten shop peaks appeared on the x-ray diffraction pattern which prove that the well-ordered arrangement of arachidic acid molecules is preserved and that the carbazole aggregates are inlaid in the frame of the arachidic acid monolayer.