This technology involves a novel approach to treating amorphous CBDO (cyclobutanediol) copolymers, enabling them to exhibit self-healing and shape memory properties. By heating the copolymer above its glass transition temperature, the material undergoes a transformation that bestows it with these advanced functionalities. The copolymer is synthesized from a combination of aromatic dicarboxylic acid (or its ester/anhydride), 2,2,4,4-tetraalkyl-1,3-cyclobutanediol, and diols such as 1,3-propanediol or 1,4-butanediol.