Bis-spirocyclic diol monomers and polyurethanes derived from citric acid : synthesis, properties, electrospinnability, and evaluation of chemical recyclabilityLiblikas, Ilme; Bonjour, Olivier; Savest, Natalja; Krumme, Andres; Jannasch, Patric; Vares, LauriChemical engineering journal2025 / art. 163525 https://doi.org/10.1016/j.cej.2025.163525