Catalytic Amine Functionalization and Polymerization of Cyclic Alkenes Creates Adhesive and Self-Healing Materials AITranslate

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DOI：https://doi.org/10.1021/acsapm.1c00158

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The chemical functionalization of polyolefins to access responsive materials is a long-standing challenge in materials science. Current protocols do not typically tolerate polar functional groups, and postpolymerization modification often leads to material defects. Here the catalytic synthesis of amine-functionalized polyolefins has been achieved using a two-step catalytic combination of hydroaminoalkylation and ring-opening metathesis polymerization (ROMP). Furthermore, reduction was used to obtain an aminated polyethylene analogue. This preparation transforms simple starting materials into polar-functionalized polymers with complete atom economy. Utilizing dynamic associative interactions, including hydrogen bonding, these materials demonstrate tunable rheological properties, autonomous self-healing, and unexpected adhesion to polytetrafluoroethylene (PTFE).