Stretchable, tough, and self-healing elastomer and applications thereof

A method comprising:

• selecting a ratio of at least a first moiety and a second moiety based on one or more designated mechanical properties;
• forming a viscous solution that includes a flexible polymer and the ratio of the at least first moiety and the second moiety;
• and
• from the viscous solution, forming a polymer film includes a supramolecular network of elastomer material, the elastomer material having a flexible polymer backbone that includes the flexible polymer with the selected ratio of the at least first moieties and second moieties, the first moieties being configured and arranged to provide a first number of dynamic bonds resulting from interactions between the first moieties and the second moieties being configured and arranged to provide a second number of dynamic bonds resulting from interactions between the second moieties, the second number of dynamic bonds having a weaker bonding strength than the first number of dynamic bonds, wherein the formed polymer film exhibits autonomous self-healing, a Young's modulus of between 0.1 and 3.0 megapascal (MPa), and stretching of at least 1,200 and 3,000 percent without rupturing.