Synthesis of Thiol-Functionalized Ionic Liquids and Formation of Self-Assembled Monolayer on Gold Surfaces: Effects of Alkyl Group and Anion on the Surface Wettability

Bulletin of the Korean chemical society

Bang Sook Lee¹  Sang-gi Lee¹ 

关键词: Thiol-functionalized ionic liquids;    Self-assembled monolayer;    Surface wettability;    Anion effect;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

Twenty four thiol-functionalized ionic liquids based on imidazolium cation, 1-(12-mercaptododecyl)-3-alkylimidazolium salts, have been synthesized, and utilized to investigate the effects of alkyl-chain length and anion on the wettability of Au surfaces on the basis of self-assembled monolayers presenting [(CnSAMIM)X], where n = 1-6, X = Br, BF4, PF4 and NTf2. Water wettabilities of the surfaces were measured as a water contact angle by contact angle goniometry. It was found that water wettability of the Au surfaces coated with imidazolium ions was largely dependent not only on counter anions but also on the length of alkyl chains. In the case of SAMs of N-alkylimidazolium ions having short length of N-alkyl chain (C1-C4), anions played great role in determining water wettability of the surfaces.

【 授权许可】

Unknown