title: Star PolyMOCs with Diverse Structures, Dynamics, and Functions by Three-Component Assembly.
abstract: 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 M12L24MOCs enables great flexibility in tuning this ratio, which provides access to a rich spectrum of material properties including tunable moduli and relaxation dynamics.
authors.affiliation: Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, USA.|Department of Chemistry, the University of Hong Kong, Pokfulam Road, Hong Kong SAR, China.
authors.forename: Yufeng
authors.identifier: 0000-0001-9409-7250
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, USA.
authors.forename: Yuwei
authors.initials: Y
authors.lastname: Gu
authors.affiliation: Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, USA.|Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, USA.
authors.forename: Eric G
authors.initials: EG
authors.lastname: Keeler
authors.affiliation: Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, USA.
authors.forename: Jiwon V
authors.initials: JV
authors.lastname: Park
authors.affiliation: Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, USA.|Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, USA.
authors.forename: Robert G
authors.initials: RG
authors.lastname: Griffin
authors.affiliation: Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA, USA.
authors.forename: Jeremiah A
authors.identifier: 0000-0001-9157-6491
authors.initials: JA
authors.lastname: Johnson
mesh_terms: D060326:Chemistry Techniques, Synthetic / Q000191:economics / Q000379:methods; D055119:Elastic Modulus; D005782:Gels / Q000138:chemical synthesis / Q000737:chemistry; D008024:Ligands; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010165:Palladium / Q000737:chemistry*; D011108:Polymers / Q000138:chemical synthesis / Q000737:chemistry*; D054852:Small Molecule Libraries / Q000138:chemical synthesis / Q000737:chemistry*; D013314:Stress, Mechanical
chemical_list: D005782:Gels; D008024:Ligands; D009942:Organometallic Compounds; D011108:Polymers; D054852:Small Molecule Libraries; D010165:Palladium
keywords: gels; metal-organic cages; metallosupramolecular assembly; polyMOCs; polymer networks