NMR spectroscopic data, GPC data, DSC data and Raman spectroscopic data for the ring-opening polymerisation of lactide and depolymerisation of polylactide of a series of non toxic Fe catalyst were deposited.

Bruker Avance II (400MHz)

Bruker Avance III (400MHz)

Bruker Avance Neo (400MHz)

GPCmax VE-2001 from Viscotek: two Malvern Viscotek T columns (porous styrene divinylbenzene copolymer) with a maximum pore size of 500 and 5000Å, a refractive index detector (VE-3580), and a viscometer (Viscotek 270 Dual Detector)

Netzsch DSC 204 F1 Phoenix equipped with an intra-cooler

RXN1 spectrometer of Kaiser Optical System with a 785nm laser

Bruker ultrafleXtreme equipped with a 337 nm smart beam laser in the reflective mode was used. The protein mixture Protein 1 calibration standard was used for calibration. For the spectra, 4000 laser shots with 24% laser power were collected. The laser repetition rate was 1000 Hz.