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Star PolyMOCs with Diverse Structures, Dynamics, and Functions by Three‐Component Assembly
Author(s) -
Wang Yufeng,
Gu Yuwei,
Keeler Eric G.,
Park Jiwon V.,
Griffin Robert G.,
Johnson Jeremiah A.
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201609261
Subject(s) - polymer , molecule , materials science , component (thermodynamics) , ligand (biochemistry) , molecular dynamics , chemical physics , star (game theory) , thermal decomposition , metal , nanotechnology , chemistry , computational chemistry , physics , composite material , organic chemistry , astrophysics , biochemistry , receptor , metallurgy , thermodynamics
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 M 12 L 24 MOCs enables great flexibility in tuning this ratio, which provides access to a rich spectrum of material properties including tunable moduli and relaxation dynamics.