Self-Healing Multiphase Polymers via Dynamic Metal–Ligand Interactions

A new self-healing multiphase polymer is developed in which a pervasive network of dynamic metal–ligand (zinc–imidazole) interactions are programmed in the soft matrix of a hard/soft two-phase brush copolymer system. The mechanical and dynamic properties of the materials can be tuned by varying a nu...

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Bibliographic Details
Published inJournal of the American Chemical Society Vol. 136; no. 46; pp. 16128 - 16131
Main Authors Mozhdehi, Davoud, Ayala, Sergio, Cromwell, Olivia R, Guan, Zhibin
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 19.11.2014
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Summary:A new self-healing multiphase polymer is developed in which a pervasive network of dynamic metal–ligand (zinc–imidazole) interactions are programmed in the soft matrix of a hard/soft two-phase brush copolymer system. The mechanical and dynamic properties of the materials can be tuned by varying a number of molecular parameters (e.g., backbone/brush degree of polymerization and brush density) as well as the ligand/metal ratio. Following mechanical damage, these thermoplastic elastomers show excellent self-healing ability under ambient conditions without any intervention.
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ISSN:0002-7863
1520-5126
DOI:10.1021/ja5097094