Citation: Xiao Meng WANG, Han Ming DING, Yong Kui SHAN, Ming Yuan HE. Fabrication of Layer-by-layer Films of Polyhedral Oligomeric Silsesquioxanes[J]. Chinese Chemical Letters, ;2004, 15(10): 1227-1229. shu

Fabrication of Layer-by-layer Films of Polyhedral Oligomeric Silsesquioxanes

1.
Department of Chemistry, East China Normal University, Shanghai 200062;
2.
Shanghai Key Laboratory of Green Chemistry and Chemical Process, East China Normal University, Shanghai 200062

Received Date: 17 September 2003

Fund Project: Financial supports from Science and Technology Committee of Shanghai Municipality (contract No.0152nm049), the SRF for ROCS, State Education Ministry and Shanghai Rising-Star Program, China were acknowledged.

Layer-by-layer (LBL) self-assembly method was used to fabricate siliceous ultrathin films by using polyhedral oligomeric silsesquioxanes as building blocks. Ammonium salt of octasilsesquioxane acid (OSi₈) and poly(diallyldimethylammonium chloride) (PDDA) were alternately assembled onto CaF₂ slide to form nanocomposite multilayers. Linear build-up of the LBL films was confirmed by UV-Vis spectroscopy. IR spectrum suggests existence of OSi₈ and PDDA in the LBL films. Atomic force microscopic surface topography of the LBL films indicates the OSi₈ covers the entire surface of the topmost layer and shows a granular morphology.
- Polyhedral oligomeric silsesquioxanes,
- layer-by-layer,
- ultrathin films
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