@article{13185,
  abstract     = {{Abstract Polylactide is a biodegradable versatile material based on annually renewable resources and thus CO2-neutral in its lifecycle. Until now, tin(II)octanoate [Sn(Oct2)] was used as catalyst for the industrial ring-opening polymerization of lactide in spite of its cytotoxicity. On the way towards a sustainable catalyst, three iron(II) hybrid guanidine complexes were investigated concerning their molecular structure and applied to the ring-opening polymerization of lactide. The complexes could polymerize unpurified technical-grade rac-lactide as well as recrystallized l-lactide to long-chain polylactide in bulk with monomer/initiator ratios of more than 5000:1 in a controlled manner following the coordination–insertion mechanism. For the first time, a biocompatible complex has surpassed Sn(Oct)2 in its polymerization activity under industrially relevant conditions.}},
  author       = {{Rittinghaus, Ruth D. and Schäfer, Pascal M. and Albrecht, Pascal and Conrads, Christian and Hoffmann, Alexander and Ksiazkiewicz, Agnieszka N. and Bienemann, Olga and Pich, Andrij and Herres-Pawlis, Sonja}},
  journal      = {{ChemSusChem}},
  keywords     = {{bioplastics, guanidines, iron, lactide, ring-opening polymerization}},
  number       = {{10}},
  pages        = {{2161--2165}},
  title        = {{{New Kids in Lactide Polymerization: Highly Active and Robust Iron Guanidine Complexes as Superior Catalysts}}},
  doi          = {{10.1002/cssc.201900481}},
  volume       = {{12}},
  year         = {{2019}},
}