期刊
CHEMISTRY OF MATERIALS
卷 21, 期 24, 页码 5792-5800出版社
AMER CHEMICAL SOC
DOI: 10.1021/cm902164t
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资金
- FWO-Vlaanderen
- University of Ghent
- Engineering and Physical Sciences Research Council [EP/C514580/1] Funding Source: researchfish
A novel class of periodic mesoporous organosilicas with E- and/or Z-configured ethenylene bridges was prepared under acidic conditions using the triblock copolymer Pluronic P123 as a structure directing agent. The Isomeric configuration of the precursor has a drastic effect on the properties of the resulting PMO materials. The diastercoisomerically pure E-configured ethenylene bridged PMOs reveal higher Structural ordering, narrower pore size distributions, and enhanced hydrothermal stability than their diasterectsomerically impure counterparts. These properties have been correlated with the molecular level Structure of pore walls probed by solid-state NMR spectroscopy.
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