Formation of Ceramic Microstructures: Honeycomb Patterned Polymer Films as Structure-directing Agent
作者：Li, L.,* Li, J., Zhong, Y. W., Chen, C. K., Ben, Y., Gong, J. L., Ma, Z.
關鍵字：breath figure， Ceramic Microstructures
論文來源：期刊
發表時間：2010年
Here, we show a facile and versatile method preparing highly ordered ceramic microstructures on solid substrates by pyrolyzing UV cross-linked copolymer films to circumvent the expensive lithographic technique. The employed block copolymer, poly(dimethylsiloxane)-block-polystyrene (PDMS-b-PS), in this study was synthesized by controlling radical polymerization. The highly ordered microporous polymer films were formed using a static breath figure process. After 4h UV irradiation, PS composition was effectively cross-linked. The cross-linked microporous polymer matrix served as structure-directing agent in the following pyrolyzing process, whilst PDMS composition was converted into silica to form honeycomb structured micropatterns on substrate. The chemical components of the ceramic microstructures were adjusted by simply mixing different functional precursors. Moreover, the ceramic microstructures on substrate could be replicated to prepare textured PDMS stamps. This simple technique offers new prospects in the field of micropatterns, soft lithography, and template.