Chen Chen, Zhang Hua, Shen Li, Hillmyer Marc A, Guo Shouwu
School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, People's Republic of China.
Nanotechnology. 2008 Sep 10;19(36):365304. doi: 10.1088/0957-4484/19/36/365304. Epub 2008 Jul 25.
Two facile strategies for loading metal ions in the nanopores of polystyrene-b-polyisoprene (PS-b-PI) polymeric thin films have been developed. In the first approach, through the controlled epoxidation of the polyisoprene (PI) component of the template, the hydrophilicity of the interior wall of the nanopores was increased, and the penetration of metal salt solutions into the nanopores was dramatically enhanced. However, thin film damage was observed sometimes during the PI epoxidation. Using a 'fully wetted' method, large capillary forces were suppressed, and the metal ions were easily introduced into the nanopores. The validation of the methods was illustrated for the generation of large-area and high-density CdS and ZnS nanoparticle arrays in nanoporous PS-b-PI polymeric thin films, which were characterized using atomic force microscopy (AFM), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive spectroscopy (EDS), electron diffraction (ED), and UV-vis spectroscopy.
已经开发出两种在聚苯乙烯- b -聚异戊二烯（PS - b - PI）聚合物薄膜纳米孔中负载金属离子的简便策略。在第一种方法中，通过对模板的聚异戊二烯（PI）组分进行可控环氧化，纳米孔内壁的亲水性增加，金属盐溶液向纳米孔中的渗透显著增强。然而，在PI环氧化过程中有时会观察到薄膜损伤。使用“完全润湿”方法，抑制了大的毛细作用力，并且金属离子很容易被引入到纳米孔中。通过在纳米多孔PS - b - PI聚合物薄膜中生成大面积和高密度的CdS和ZnS纳米颗粒阵列对这些方法进行了验证，使用原子力显微镜（AFM）、场发射扫描电子显微镜（FESEM）、透射电子显微镜（TEM）、能量色散光谱（EDS）、电子衍射（ED）和紫外可见光谱对其进行了表征。
