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	Pyrrole containing ionic liquid as tecton for construction of ordered mesoporous silica with aligned polypyrrole nanowires in channels
	Zhang, Weixia ; Cui, Jiecheng ; Lin, Changxu ; Wu, Yiguang ; Ma, Li ; Wen, Yuquan ; Li, Guangtao
	2010-10-12 ; 2010-10-12
关键词	IN-SITU POLYMERIZATION CONJUGATED POLYMERS TEMPLATE SYNTHESIS POROUS SILICA NANOCOMPOSITES Chemistry, Physical Materials Science, Multidisciplinary
中文摘要	Two types of ionic liquid (IL) based surfactants bearing a terminal pyrrole moiety were synthesized, and used as both structure-directing agents and monomers to prepare mesostructured silica with densely packed pyrrole units within channels via a hydrothermal synthesis procedure. A systematic study was carried out to address the influence of the relative concentration of the IL and the type of head group and counter ions on the mesostructure. As a main result, it was found that both the prepared imidazolium- and pyridium-based surfactants displayed a significantly strong tendency towards formation of a highly ordered two-dimensional (2D) hexagonal mesostructure in a broad range of conditions with excellent reproducibility. In situ polymerization of the pyrrole groups closely packed in the central region of the formed silica pore channels led to the desired mesostructured silica with well-distinct aligned polypyrrole (PPy) molecular wires in channels, which are clearly visible under TEM after the removal of silica framework. It is found that, due to the spatial confinement of the silica framework, the encapsulated PPys are elongated and straight, leading to longer conjugation length.
语种	英语 ; 英语
出版者	ROYAL SOC CHEMISTRY ; CAMBRIDGE ; THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/80899]
专题	清华大学
推荐引用方式 GB/T 7714	Zhang, Weixia,Cui, Jiecheng,Lin, Changxu,et al. Pyrrole containing ionic liquid as tecton for construction of ordered mesoporous silica with aligned polypyrrole nanowires in channels[J],2010, 2010.
APA	Zhang, Weixia.,Cui, Jiecheng.,Lin, Changxu.,Wu, Yiguang.,Ma, Li.,...&Li, Guangtao.(2010).Pyrrole containing ionic liquid as tecton for construction of ordered mesoporous silica with aligned polypyrrole nanowires in channels..
MLA	Zhang, Weixia,et al."Pyrrole containing ionic liquid as tecton for construction of ordered mesoporous silica with aligned polypyrrole nanowires in channels".(2010).

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