In this study, a series of fatty acid-based 6-member cyclic carbonates, 6CCs, were synthesized through the malonate route and the conditions to their copolymerization with trimethylene carbonate (TMC) optimized. These functional aliphatic polycarbonates were fully characterized and the influence of several parameters on the polymer properties investigated. Finally, preliminary experiments of the derivation and crosslinking of these polycarbonates were carried out.