一种新型可溶喹吖啶酮衍生物LB膜的制备及其光谱特性

Deposition and spectral properties of a novel soluble quinacridone derivative Langmuir-Blodgett films

采用表面压-分子面积(π一A)等温曲线和紫外-可见吸收谱的方法研究了一种新型喹吖啶酮衍生物材料LB膜的制备及其光谱特性．实验表明,这种新型喹吖啶酮衍生物能够在水面上形成稳定的单分子膜,它与花生酸(AA)混合后不仅可以形成很好的单分子膜,而且可以较好地转移到固体基片上制备成LB膜多层膜．这种新型喹吖啶酮衍生物LB膜的紫外-可见吸收谱的吸收峰位较稀溶液发生了红移,这是由极性溶剂分子与其相互作用的结果．它在溶液和LB膜中都是以单体的形式存在．

Deposition and spectral properties of a novel soluble quinacridone derivative （QAC16） Langmuir- Blodgett （LB） films were investigated by using the surface pressure- molecule area （π- A ） isotherm and UV - visible absorption spectra method. The experimental results demonstrated that the novel soluble quinacridone derivative could form well stable monolayer on subphase surface. The mixed QAC16/arachidic acid not only could form well stable monolayer, but also could be transferred to solid substrate and deposited LB multilayers. The peak wavelength of UV - visible absorption spectra in LB film were red - shifted from the solution absorption spectra due to QAC16 molecule and polarity solvent molecule interaction. QAC16 molecules are monomer formation in both dilute solution and Langmuir- Blodgett films.