On the rolling of asymmetric inorganic-surfactant membrane into uncapped mesophase tubes

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题名:	On the rolling of asymmetric inorganic-surfactant membrane into uncapped mesophase tubes
作者:	Shen, Pouyan;范樂陽;Fahn, Yaunh-Yarng;Su, An-Chung;(東方技術學院化工與材料工程系)
贡献者:	東方技術學院化工與材料工程系
关键词:	Mesoporous silica;Roll;Mesophase tubes;TEM
日期:	2005-01
上传时间:	2009-11-20 16:23:06 (UTC+8)
摘要:	On the basis of analytical electron microscopic observations, we propose that the water–air interface-mediated and aluminosilicate-encased lamellar mesophase, with epitaxial hexagonal mesophase adjoined from the water-side, roll into uncapped mesophase tubes in which the lamellar mesophase serves as the inner wall. This mechanism is consistent with the air bound hydrophobic nature of surfactant tail as well as intrinsic anisotropy in the distribution of charge and polymerization density across the mesophase interface. We show also that spiral rolling of the asymmetric composite membrane typically resulted in disordering and dislocations in the lamellar phase near the hinge, with the tapered end rolling into concentric tube.
關聯:	Materials Science and Engineering: C, Vol.25, pp.11-15
显示于类别:	[化工與材料工程系] 期刊論文

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