Nanoporous membranes of hydrogen-bridged smectic networks with nanometer transverse pore dimensions
Nanoporous membranes of hydrogen-bridged smectic networks with nanometer transverse pore dimensions
复制标题
DOI：
10.1002/adma.200702002
复制
发表时间：
2008-04-04
影响因子：
29.4
通讯作者：
Broer, Dirk J.
中科院分区：
文献类型：
--
作者：
Gonzalez, Carmen Luengo;Bastiaansen, Cees W. M.;Broer, Dirk J.
纳米多孔膜是基于光反应性氢桥近晶液晶二聚体制成的。通过光聚合锁定自组装的层状结构。氢桥通过加热或改变pH值可逆地打开。这形成周期性孔，其完整性通过共价交联剂保持，将间距设置为约。1 nm。孔被与阳离子或胺结合的羧基阴离子覆盖。
Nanoporous membranes are made based on photoreactive hydrogen-bridged smectic liquid crystal dimers. The self-assembled layered structure is locked by photopolymerization. The hydrogen bridges are reversibly opened by heating or by changing the pH. This forms periodic pores of which the integrity is conserved by a covalent crosslinker, setting the spacing at ca. 1 nm. The pores are covered with carboxylic anions that bind to cations or to amines.