Structure, Formation Mechanism and Reactions of Self-assembled Monolayers

Chen Haigang, Wu Xuedong, Yu Qinqin, Wang Dapu, Yang Shengrong^#
(School of Chemistry and Chemical Engineering, Shanghai Jiaotong University, Shanghai 200240  ^#National Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics the Chinese Academy of Sciences, Lanzhou 730000)

Abstract The advances of self-assembled monolayers are reviewed in this paper, focusing on the structure, formation mechanism and reactions. The factors that affect the orientation of self-assembled monolayers are also discussed from different driving forces for the formation of these films. And a special feature of SAMs is introduced, namely even-odd effects. The reactions in self-assembled monolayers are summarized, especially on the features that have no analogues in bulky chemistry. Therefore solvent effects and steric effects are discussed.
Key words Self-assembled monolayers, Conformation, Surface reaction, Even-odd effects, Formation mechanism

分子自组装膜的结构、形成机理和表面化学反应

陈海刚 乌学东^* 虞勤琴 王大璞 杨生荣^#
(上海交通大学化学化工学院 上海 200240  ^#中国科学院兰州化学物理研究所 固体润滑国家重点实验室 兰州 730000)

摘要 综述了国外有关分子自组装膜(SAMs)研究的一些最新进展,包括它的结构、形成机理以及基于膜表面的化学反应。从SAMs的三种不同驱动力角度讨论了影响分子自组装膜有序性的各种因素,并分析了分子自组装膜的一个独特性质：奇-偶效应。另外还综述了基于分子自组装膜的各种表面化学反应,并讨论了影响膜表面化学反应的溶剂效应和空间位阻效应,比较了其与一般体相反应所不同的性质。
关键词 分子自组装膜 构象 表面反应 奇-偶效应 形成机理

陈海刚 男，23岁，硕士生，现从事新型分子自组装膜的研究。*联系人 E-mail:xdwu@mail.sjtu.edu.cn
国家自然科学基金资助项目(50023001)
2001-05-13收稿，2001-11-06修回