Journal
CHEMIE INGENIEUR TECHNIK
Volume 93, Issue 6, Pages 916-928Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cite.202000238
Keywords
Adsorption; Mesoporous polymers; Nanocasting; Nanopores; Polydivinylbenzene; Sulfonation
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Funding
- University of Vienna (Austria)
- Natural Science and Engineering Research Council of Canada (NSERC)
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This study comprehensively investigates the physicochemical characteristics of high surface area functional organic polymers and copolymers obtained through nanocasting, including successful modifications to introduce functional groups. The advantages of the hard templating method for structuring organic materials are highlighted, but limitations of this approach are also discussed.
Nanocasting is a convenient way for preparing highly porous, nanostructured soft materials. Mesoporous polymer nanocasts have been reported for over a decade, however, several aspects remain to be explored further. To do so, we report a comprehensive investigation of the physicochemical characteristics of high surface area functional organic polymers and copolymers obtained by nanocasting. Divinylbenzene, styrene and chloromethyl styrene were selectively polymerized within the pores of mesoporous SBA-15 or KIT-6 silicas. Following template removal, the resulting materials were characterized. The nanocast mesoporous polymers were also modified to introduce functional groups. The success of the functionalization was assessed analytically and by model catalytic tests. The study points to the advantages of the hard templating method for structuring organic materials but also its limitations.
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