Sidorenko Alexander, Tokarev Igor, Minko Sergiy, Stamm Manfred
Institut für Polymerforschung Dresden, Hohe Strasse 6, Dresden 01069, Germany.
J Am Chem Soc. 2003 Oct 8;125(40):12211-6. doi: 10.1021/ja036085w.
We report on a unique, very simple method of preparation of reactive membranes and nanotemplates with nanoscopic cylindrical channels on the surface of various inorganic and polymeric substrates. Well-ordered nanostructured thin polymer films have been fabricated from the supramolecular assembly of poly(styrene-block-4-vinylpyridine) (PS-PVP) and 2-(4'-hydroxybenzeneazo)benzoic acid (HABA), consisting of cylindrical nanodomains formed by PVP-HABA associates surrounded by PS. Alignment of the domains has been shown to be switched upon exposure to vapors of different solvents from the parallel to perpendicular orientation to the confining surface and vice versa. The alignment of the cylindrical nanodomains is insensitive to the composition of the confining surface due to the self-adaptive behavior of the supramolecular PVP-HABA assembly. Extraction of HABA with selective solvent results in nanomembranes with a hexagonal lattice (24 nm in the period) of hollow channels of 8 nm in the diameter crossing the membrane from the top to the bottom. The walls of the channels are constituted from reactive PVP chains. The channels were filled with Ni clusters via the electrodeposition method to fabricate the ordered array of metallic nanodots of 1.2 tera per cm(2).
我们报道了一种独特且非常简单的方法，可在各种无机和聚合物基底表面制备具有纳米级圆柱形通道的反应性膜和纳米模板。通过聚（苯乙烯 - 嵌段 - 4 - 乙烯基吡啶）（PS - PVP）和2 - （4'- 羟基苯偶氮）苯甲酸（HABA）的超分子组装制备了有序的纳米结构聚合物薄膜，该薄膜由PVP - HABA缔合体形成的圆柱形纳米域组成，周围被PS包围。已表明，当暴露于不同溶剂的蒸汽时，这些域的排列会从与限制表面平行的方向切换到垂直方向，反之亦然。由于超分子PVP - HABA组装体的自适应行为，圆柱形纳米域的排列对限制表面的组成不敏感。用选择性溶剂萃取HABA会得到具有六边形晶格（周期为24 nm）的纳米膜，其直径为8 nm的中空通道从膜的顶部到底部贯穿。通道壁由反应性PVP链构成。通过电沉积方法将通道填充Ni簇，以制备每平方厘米1.2万亿个的有序金属纳米点阵列。
