铝表面三嗪硫醇高分子纳米薄膜的电化学制备  

Preparation of Triazine Thiol Polymeric Nano-film by Electrochemical Polymerization on Aluminum Surface

作　　者：王芳[1] 王茜[1] 罗和义[1] 王景刚[1] 许娟[1] 

机构地区：[1]西北农林科技大学理学院,陕西杨凌712100

出　　处：《材料科学与工程学报》2010年第4期524-528,共5页Journal of Materials Science and Engineering

基　　金：教育部留学回国人员科研启动基金资助项目(K314020902)

摘　　要：通过电化学的方法,利用一种自设计合成的6-N,N-二烯丙基氨基-1,3,5-三嗪-2,4-硫醇(简称DAN)在金属铝表面制备高分子纳米薄膜。通过反射吸收红外光谱(RA-IR)对此三嗪硫醇的高分子纳米薄膜(PDA)的化学结构进行了确定。同时对于铝表面形成的PDA薄膜进行了接触角、膜厚和膜重测定。测定结果显示:只有在亚硝酸钠作为支持电解质的条件下,在铝的表面形成了三嗪硫醇高分子纳米薄膜;并且形成的三嗪硫醇高分子纳米薄膜的膜厚及重量与电解时间和电位成正比。通过原子力显微镜对不同电解电位条件下形成的薄膜表面形态和表面粗糙程度进行了评价,表明通过恒电位法使用较高的电解电位在铝表面获得了均匀致密的PDA薄膜,为在铝表面制备有机介电薄膜提供了研究基础。Polymeric nano-films were prepared by electrochemical polymerization of 6-N,N-diallylamino-1,3,5-triazine-2,4-dithiol monosodium（DAN） at 10℃ in 0.15mol/dm^3 electrolyte aqueous solution on aluminum plates.As a result,poly（6-N,N-diallylamino-1,3,5-triazine-2,4-disulfide）（PDA） nano-films were obtained.From Fourier transform infrared（FT-IR） spectra of the polymeric nano-films formed on aluminum plates,the C=N– stretching vibration peaks of triazine ring at 1481,1536 and 1566cm^-1 are observed,indicating the formation of PDA nano-films on aluminum plates when NaNO_2 is used as electrolyte.The chemical structures of polymeric nano-films were characterized by optical ellipsometry,contact angle goniometry,FT-IR and atomic force microscopy（AFM）.The thickness and weight of a polymeric nano-film increase proportionally to the electrochemical polymerization time and potential.AFM confirmed that homogeneous and compact PDA nano-films are obtained with a higher electro polymerization potential.

关 键 词：金属铝 6-N N-二烯丙基氨基-1 3 5-三嗪-2 4-硫醇(DAN) 高分子 纳米薄膜 电化学 

分 类 号：TQ153.1[化学工程—电化学工业]