Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 56, Issue 1, Pages 188-192Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201609261
Keywords
gels; metallosupramolecular assembly; metal-organic cages; polymer networks; polyMOCs
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Funding
- National Science Foundation [CHE-1334703]
- Henkel Inc.
- NIH [1S10RR013886-01]
- NSF [DBI-9729592]
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We report star polymer metal-organic cage (polyMOC) materials whose structures, mechanical properties, functionalities, and dynamics can all be precisely tailored through a simple three-component assembly strategy. The star polyMOC network is composed of tetra-arm star polymers functionalized with ligands on the chain ends, small molecule ligands, and palladium ions; polyMOCs are formed via metal-ligand coordination and thermal annealing. The ratio of small molecule ligands to polymer-bound ligands determines the connectivity of the MOC junctions and the network structure. The use of large M12L24 MOCs enables great flexibility in tuning this ratio, which provides access to a rich spectrum of material properties including tunable moduli and relaxation dynamics.
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