A team from the Johnson, Craig, and Kulik labs introduce a new class of polymer metal–organic cage (polyMOC) gels featuring polyethylene glycol (PEG) strands of varied length cross-linked through bis-pyridyl-carbazole-based M6L12 cubes, where M is Pd(II), Pt(II), or mixtures thereof. The work introduces a novel MOC architecture for polyMOC design, shows that polyMOCs can be prepared from mixtures of Pd(II)/Pt(II), and demonstrates that polyMOCs display unique relaxation behavior due to their multivalent junctions, offering a strategy for controlling polyMOC properties independently of their polymer components.
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