含咔唑与偶氮分散红共聚物的表面增强共振拉曼光谱研究  

Surface Enhanced Raman Scattering Spectra of Carbozole and Azobenzene Disperse Red Polymer

作　　者：王秀如[1] 孙润光[1] 王长顺[2] 莫育俊[3] 

机构地区：[1]上海大学材料科学与工程学院,上海201800 [2]上海交通大学物理系,上海200030 [3]河南大学物理系,河南开封475001

出　　处：《光谱学与光谱分析》2006年第4期649-652,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金(60177003);"973"项目(2002CB613405)资助

摘　　要：借助于表面增强共振拉曼光谱散射(SERRS)技术,研究了一种新型的偶氮聚合物材料侧链含咔唑与偶氮分散红共聚物(CAP)在化学沉积法制备的银膜表面的拉曼峰增强和吸附行为。实验结果显示,CAP在银表面的状态为:聚合物通过咔唑单体中咔唑基团和偶氮单体中硝基与银膜衬底发生物理吸附,而聚合物的主链与衬底相距较远没有相互作用。可以推测,聚合物在衬底表面的这种状态将对偶氮光存储器件的稳定性和工作效率产生不良影响。Surface enhanced resonance Raman scattering（SERRS） was employed to study the molecule alignment of carbozole and azobenzene disperse red polymer on the surface of rough silver thin film. According to the selection rule of optical transitions and experiment results, it was found that the surface geometry of carbozole and azobenzene disperse red polymer was： this was physical adsorption between the carbazole group, which is from the monomer of carbazole and nitro-group which is from the monomer of azobenzene on the surface of rough silver film, and there is almost no interaction between the principal chain and the substrate because of the distance. This geometrical configuration of CAP on the surface of the substrate was proposed to damage the stabilities and efficiency of azobenzene derivatives based optical storage devices.

关 键 词：偶氮聚合物(CAP) 共振拉曼散射 表面增强共振拉曼散射 

分 类 号：O657.3[理学—分析化学]