Journalartikel

Jahr der Veröffentlichung: 2003

Seiten: 7295-7301

Zeitschrift: Langmuir

Bandnummer: 19

Heftnummer: 18

ISSN: 0743-7463

DOI Link: https://doi.org/10.1021/la034798m

Verlag: American Chemical Society

Abstract: 
We report the synthesis and characterization of mesostructured thin silica films derived from methyltriethoxysilane (MTES) and/or tetraethyl orthosilicate (TEOS) silica precursors and polystyrene-block-poly(ethylene oxide) (PS-b-PEO) diblock copolymers via the solvent evaporation-induced self-assembly (EISA) process. It is found that the meso- and microstructure of the calcined films consists of cubic-ordered arrays of spherical mesopores of 5-7 nm in diameter, interconnected with a small number (less than or equal to4% by volume) of PEO-induced micropores of similar to1 nm in diameter, as determined by new experimental results of transmission electron microscopy, N-2 sorption, gas permeation, and grazing incidence small-angle X-ray scattering studies. The present comprehensive study of these novel closed-pore films should provide a general methodology for microstructural characterization of other related porous films prepared by similar self-assembly processes.

Harvard-Zitierstil: Smarsly, B., Xomeritakis, G., Yu, K., Liu, N., Fan, H., Assink, R., et al. (2003) Microstructural characterization of polystyrene-block-poly(ethylene oxide)-templated silica films with cubic-ordered spherical mesopores, Langmuir, 19(18), pp. 7295-7301. https://doi.org/10.1021/la034798m

APA-Zitierstil: Smarsly, B., Xomeritakis, G., Yu, K., Liu, N., Fan, H., Assink, R., Drewien, C., Ruland, W., & Brinker, C. (2003). Microstructural characterization of polystyrene-block-poly(ethylene oxide)-templated silica films with cubic-ordered spherical mesopores. Langmuir. 19(18), 7295-7301. https://doi.org/10.1021/la034798m