Electron-Conjugated Organic Silane Compound, Functional Organic Thin Film And Production Method Thereof
申请人:Imada Hiroshi
公开号:US20080075950A1
公开(公告)日:2008-03-27
The present invention provides a highly orientated (crystallized) and highly-densely packed functional organic thin film that can be formed in a simple production method by solution method and adsorb tightly to a surface of a substrate, an organic silane compound for preparation of the thin film, and methods of preparing the same.
An organic silane compound represented by General Formula; A-B—C—SiX
1
X
2
X
3
(wherein, A represents a monovalent aliphatic hydrocarbon group having 1 to 30 carbon atoms; B represents an oxygen or sulfur atom; C represents a π-electron-conjugated bivalent organic group; and each of X
1
to X
3
represents a group giving a hydroxyl group by hydrolysis). A functional organic thin film obtained by using the organic silane compound.
A method of producing the organic silane compound, comprising introducing an aliphatic hydrocarbon group A onto a compound represented by General Formula; H—C—H (wherein, C is the same as above) via an ether or thioether bond in Williamson reaction, and additionally introducing a silyl group in reaction thereof with a compound represented by General Formula; X
4
—SiX
1
X
2
X
3
(wherein, X
1
to X
3
are the same as above). A method of producing the functional organic thin film, comprising forming a unimolecular film directly adsorbed on a substrate by hydrolyzing the silyl group in the organic silane compound and allowing the hydrolysate to react with the substrate surface, and washing and removing the unreacted organic silane compound on the unimolecular film with a nonaqueous organic solvent.
本发明提供了一种高度定向(结晶)和高密度堆积的功能性有机薄膜,该薄膜可以通过溶液法简单制备,并紧密吸附在基底表面上,以及用于制备该薄膜的有机硅化合物和制备方法。有机硅化合物的通用式为:A-B—C—SiX1X2X3(其中,A表示具有1至30个碳原子的一价脂肪烃基;B表示氧或硫原子;C表示π-电子共轭的二价有机基团;X1至X3中的每一个表示通过水解给出羟基的基团)。使用有机硅化合物获得的功能性有机薄膜。制备有机硅化合物的方法包括通过Williamson反应在通用式为H—C—H(其中,C与上述相同)的化合物上引入脂肪烃基A,通过与通用式为X4—SiX1X2X3(其中,X1至X3与上述相同)的化合物反应,进一步引入硅基团。制备功能性有机薄膜的方法包括通过水解有机硅化合物中的硅基团,并使水解物与基底表面反应,从而直接在基底上形成单分子膜,并使用非水有机溶剂清洗和去除单分子膜上未反应的有机硅化合物。