N-Heterocyclic Carbene-Carbodiimide (NHC-CDI) Betaines as Organocatalysts for ?-Butyrolactone Polymerization: Synthesis of Green PHB Plasticizers with Tailored Molecular Weights - Sánchez-Roa, D.; Sessini, V.; Mosquera, M.E.G.; Cámpora, J. (ACS Catalysis, 2024)