Abstract
Organically modified aluminosilicate mesostructures were synthesized from two metal alkoxides with the use of poly(isoprene- b -ethyleneoxide) block copolymers (PI-b-PEO) as the structure-directing molecules. By increasing the fraction of the inorganic precursors with respect to the polymer, morphologies expected from the phase diagrams of diblock copolymers were obtained. The length scale of the microstructures and the state of alignment were varied using concepts known from the study of block copolymers. These results suggest that the use of higher molecular weight block copolymer mesophases instead of conventional low–molecular weight surfactants may provide a simple, easily controlled pathway for the preparation of various silica-type mesostructures that extends the accessible length scale of these structures by about an order of magnitude.
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Dates
Type | When |
---|---|
Created | 23 years ago (July 27, 2002, 5:45 a.m.) |
Deposited | 1 year, 7 months ago (Jan. 12, 2024, 10:01 p.m.) |
Indexed | 5 days, 9 hours ago (Aug. 21, 2025, 12:39 p.m.) |
Issued | 27 years, 8 months ago (Dec. 5, 1997) |
Published | 27 years, 8 months ago (Dec. 5, 1997) |
Published Print | 27 years, 8 months ago (Dec. 5, 1997) |
@article{Templin_1997, title={Organically Modified Aluminosilicate Mesostructures from Block Copolymer Phases}, volume={278}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.278.5344.1795}, DOI={10.1126/science.278.5344.1795}, number={5344}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Templin, Markus and Franck, Achim and Du Chesne, Alexander and Leist, Heike and Zhang, Yuanming and Ulrich, Ralph and Schädler, Volker and Wiesner, Ulrich}, year={1997}, month=dec, pages={1795–1798} }