Journal
GREEN CHEMISTRY
Volume 16, Issue 11, Pages 4767-4774Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4gc01245c
Keywords
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Funding
- NSFC [21373088]
- Innovation Program of Shanghai Municipal Education Commission [13zz038]
- Key Project of the Shanghai Committee of Science and Technology [12JC1403600]
- PhD Programs Foundation of Ministry of Education [2012007613000]
- National Key Technology R D Program [2012BAE05B02]
- Shanghai Leading Academic Discipline Project [B409]
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A series of novel heterogeneous catalysts were developed by immobilizing imidazolium-based functionalized ionic liquids on an FDU-type mesoporous polymer. Various techniques such as X-ray diffraction, N-2 adsorption-desorption, and high resolution transmission electron microscopywere used to characterize the physicochemical properties of the catalysts. Ionic liquid-functionalized mesoporous polymers serve as efficient catalysts in the solvent free cycloaddition reactions of CO2 with epoxides without the use of any co-catalyst. The catalysts can be easily recovered and reused without a significant loss of activity. In comparison with the polystyrene (PS) and mesosilica SBA-15 supports, the FDU mesopolymer possesses both the mesoporous organic framework and abundant phenolic hydroxyl groups, which are key factors in improving the catalytic performance of supported ionic liquids.
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