Journal
ACS MACRO LETTERS
Volume 5, Issue 4, Pages 435-438Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsmacrolett.6b00178
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Funding
- National Natural Science Foundation of China [21273078, 21573072]
- Shanghai Leading Academic Discipline Project [B409]
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Homogeneous catalysts generally show higher catalytic activities, while heterogeneous catalysts are more easily separated from products. To combine the advantages of heterogeneous and homogeneous catalysts has been of great interest for many years. Here, we report a kind of facilely prepared cross-linked poly(ionic liquid)s (PILs) with swelling property to increase catalytic activities of heterogeneous catalysts. The swelling ability of PILs was greatly affected by cross-linking density and chain length of substituents on imidazolium, and the unique swelling property prompted the nonporous PILs to contact with substrates sufficiently, enhancing their catalytic activities similar to homogeneous ionic liquid monomers.
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