Fig. 1: Bio-based sources, polymerization methods, structure-property relationship and application of PEA.

A concise overview of poly(ester amide) (PEA), including: Typical biobased sources for PEA synthesis (e.g., α-amino acids, polysaccharides, and plant oils); Major polymerization methods (e.g., polycondensation, ring-opening polymerization, and green synthesis approaches); The structure-property relationships of PEA, focusing on how molecular design influences properties like degradability; Representative applications of PEA in biomedicine, nanofiltration membranes, and coatings.