A supramolecular polymer is a polymer whose monomer repeat units are held together by noncovalent bonds. Non-covalent forces that hold supramolecular polymers together include coordination, p-p interactions, and hydrogen bonding. Supramolecular polymers can have physical properties similar to plastic materials, while having better processability and better recycling and self-healing properties, thanks to their reversible transition from monomer to polymer structure.