Tough Self-healing Polymer System based on Metal-Ligand Interactions
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초록
내용
Self-healing polymers are a kind of smart materials that can respond to external mechanical stimulus and restore mechanical properties after mechanical damages. Recently, I developed the new type of tough self-healing polymers based on metal-ligand coordination. This material shows i) autonomous self-healing property ii) high stretchability (500%＞) and iii) high toughness (＞5,000 J/m2). The key of this new features is derived from the various strength of metal-ligand crosslinking moieties. When coordinating counter-anion and non-coordinating counter-anion are co-existing in system, crosslinking networks can exhibit multiple energy dissipation modes. In my poster presentation, I will discuss more details for the design of tough self-healing polymers based on metal-ligand interactions and their dynamic mechanical properties.