Kadla John F, Asfour Fadi H, Bar-Nir Batia
Advanced Biomaterials Chemistry Laboratory, University of British Columbia, Vancouver, BC, V6T 1Z4.
Biomacromolecules. 2007 Jan;8(1):161-5. doi: 10.1021/bm060808x.
Thin film honeycomb materials were prepared from regioselectively modified celluloses. The method uses water condensation at the surface of a cellulosic solution as an ordered template to form honeycomb structures. Pore size and distribution is controlled by several factors, one of which is the hydrophilicity of the cellulosic used. The amphiphilic nature of the celluloses was modified with varying lengths of ethylene glycol side chains using 2,6-thexyldimethylsilyl cellulose. It was found that the side chains do affect the honeycomb formation, with longer ethylene glycol chains leading to increased pore uniformity but having little influence on the pore size.
薄膜蜂窝材料由区域选择性改性纤维素制备而成。该方法利用纤维素溶液表面的水凝结作为有序模板来形成蜂窝结构。孔径和分布受多种因素控制，其中之一是所用纤维素的亲水性。使用2,6-二叔丁基二甲基硅烷基纤维素，用不同长度的乙二醇侧链对纤维素的两亲性进行改性。结果发现，侧链确实会影响蜂窝结构的形成，较长的乙二醇链会使孔径均匀性增加，但对孔径影响不大。
