Fabrication of honeycomb film of an amphiphilic copolymer at the air-water interface
Fabrication of honeycomb film of an amphiphilic copolymer at the air-water interface
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DOI：
10.1021/la011451f
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发表时间：
2002-07-23
期刊：
影响因子：
3.9
通讯作者：
Shimomura, M
中科院分区：
文献类型：
--
作者：
Nishikawa, T;Ookura, R;Shimomura, M
报道了一种制备具有规则微孔阵列的聚合物薄膜（蜂窝膜）的新方法。采用两亲性聚合物稀溶液在水表面沉积的方法制备了蜂窝状薄膜。用原子力显微镜对转移到固体基底上的蜂窝状薄膜进行了表征。通过该制造方法，可以控制膜面积、孔径和膜厚度。孔径大小取决于聚合物溶液在水面上的蒸发时间。蜂窝膜的厚度通过聚合物溶液的铺展面积来控制。水温对铺展行为有影响。膜面积与分散聚合物溶液的体积成正比，并通过改变亚相温度来控制。当将聚合物溶液简单地浇铸在固体基底上时，薄的聚合物层保留在蜂窝孔的底部。另一方面，在水面上制备的蜂窝状膜在其孔隙中没有底层。通过“水上铺展”方法形成自立式蜂窝网。
We report a new fabrication method of a thin polymer film with regular array of micropores (honeycomb film). A honeycomb film was fabricated by depositing a dilute solution of an amphiphilic polymer on water surface. The honeycomb film transferred onto a solid substrate was characterized by atomic force microscopy. By this fabrication method, it was possible to control film area, pore diameter, and film thickness. The pore size depended upon the evaporation time of the polymer solution spread on water surface. The thickness of a honeycomb film was controlled by spreading area of the polymer solution. The spreading behavior was influenced by the water temperature. The film area was proportional to the volume of spread polymer solution and controlled by changing the sub-phase temperature, too. When the polymer solution was simply cast on a solid substrate, a thin polymer layer remained in the bottom of the honeycomb pores. On the other hand, the honeycomb film fabricated on water surface has no bottom layer in its pores. A self-standing honeycomb mesh is formed by the "on-water spreading" method.