Chem. Commun., 2025, Accepted Manuscript DOI: 10.1039/D5CC04205D, Communication A. Trapali, J F Meunier, Michel Baltas, Lionel Salmon, Azzedine Bousseksou Ball milling experiments were conducted on spin crossover (SCO) particle-based powder and SCO@themoplastic polyurethane (TPU) composite samples with increasing grinding time. Differential scanning calorimetry and magnetic measurement supported by powder...