Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 60, Issue 31, Pages 16953-16957Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202104886
Keywords
boronic acid; organo-functionalization; polyoxometalate; self-assembly; supramolecular chemistry
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Funding
- National Natural Science Foundation of China [U1804253]
- Natural Science Foundation of Henan Province [202300410246]
- Heilongjiang Province [QC2017004]
- Henan Normal University [2019PL06]
- Ulm University
- Helmholtz-Gemeinschaft HGF
- Deutsche Forschungsgemeinschaft DFG [TRR234, 364549901]
- Federal State of Baden-Wrttemberg
- Projekt DEAL
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The study presents a new type of organic-inorganic hybrid polymer with high proton conductivity and controlled functionality, achieving a breakthrough in materials design.
The controlled bottom-up design of polymers with metal oxide backbones is a grand challenge in materials design, as it could give unique control over the resulting chemical properties. Herein, we report a 1D-organo-functionalized polyoxometalate polymer featuring a purely inorganic back-bone. The polymer is self-assembled from two types of monomers, inorganic Wells-Dawson-type polyoxometalates, and aromatic organo-boronates. Their covalent linkage results in 1D polymer strands, which combine an inorganic oxide backbone (based on B-O and Nb-O linkages) with functional organic side-chains. The polymer shows high bulk proton conductivity of up to 1.59 x 10(-1) Scm(-1) at 90 degrees C and 98% relative humidity. This synthetic approach could lead to a new class of organic-inorganic polymers where function can be designed by controlled tuning of the monomer units.
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