Department of Polymer Chemistry, Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747, AG, Groningen, The Netherlands.
Macromol Rapid Commun. 2013 Aug;34(15):1208-12. doi: 10.1002/marc.201300326. Epub 2013 Jul 9.
The phase behavior of block copolymer based supramolecular complexes polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) and amphiphilic pentadecylphenol (PDP) molecules resembles the phase behavior of conventional block copolymers. Several PS-b-P4VP(PDP) complexes are found to self-assemble into gyroid nanostructures. Typically, the grains are randomly oriented with a maximal size of several micrometers. Here, the orientation of a gyroid PS-b-P4VP(PDP) complex upon shearing is reported. It is found that the (111) gyroid lattice direction orients parallel to the shear direction after only several seconds of large amplitude oscillatory shearing. Oriented gyroid complexes can be used as templates for the preparation of metal nanofoams with improved ordering with potentially superior properties.
基于嵌段共聚物的超分子配合物聚苯乙烯-聚（4-乙烯基吡啶）（PS-b-P4VP）和两亲性十五烷基苯酚（PDP）分子的相行为类似于传统嵌段共聚物的相行为。已经发现几种 PS-b-P4VP（PDP）配合物自组装成向列型纳米结构。通常，晶粒是随机取向的，最大尺寸为几微米。在这里，报道了在剪切下向列型 PS-b-P4VP（PDP）配合物的取向。结果发现，在经过几秒钟的大振幅振荡剪切后，（111）向列格子方向平行于剪切方向取向。取向的向列型配合物可用作制备具有潜在优异性能的金属纳米泡沫的模板，其有序性得到改善。
