An efficient route to mesoporous silica films with perpendicular nanochannels

作者：Nagarajan Sivakumar; Li Mingqi; Pai Rajaram A; Bosworth Joan K; Busch Peter; Smilgies Detlef M; Ober Christopher K^*; Russell Thomas P; Watkins James J

来源：Advanced Materials, 2008, 20(2): 246-+.

DOI：10.1002/adma.200701766

Mesoporous silica films with cylindrical pores oriented normal to the substrate are prepared by selective deposition of silica within the poly(hydroxy styrene) domains of poly(alpha-methyl styrene-b-hydroxy styrene) template films using supercritical carbon dioxide as a delivery medium. Atomic force microscopy, electron microscopy, and grazing incidence small angle X-ray scattering (see figure) studies confirm the vertical alignment of the cylindrical pores.

• 出版日期2008-1-18