Layer-by-layer self-assembled multilayer of cationic spiroxazine and polystyrenesulfonate
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- 作者：Sung-Hoon Kim ; Chang-Ju Shin ; Sam-Rok Keum and Kwangnak Koh
- 关键词：Spiroxazine ; Layer-by-layer deposition ; Photochromism ; Ionic conductivity ; Multilayer
- 刊名：Dyes and Pigments
- 出版年：2007
- 出版时间：2007
- 年：2007
- 卷：72
- 期：3
- 页码：378-382
- 全文大小：497 K
文摘
Novel spiroxazine (SO) bearing two positive charges has been synthesized via an improved synthetic route. Alternate multilayer films of an SO and anionic polystyrenesulfonate (PSS) are prepared by self-assembly based on layer-by-layer (LBL) deposition using electrostatic attraction between oppositely charged ions. The build up of the multilayer films is followed by UV–vis spectroscopy and atomic force microscopy (AFM). Photoinduced ionic conductivity response and salt effect of SO/PSS multilayer have been also studied.