Javier Martínez Martínez is an auxiliary professor at Universidad Austral de Chile. He was a postdoctoral student at the Pontificia Universidad Católica de Chile under the supervision of Prof. René S. Rojas. He achieved his PhD in Chemistry at the Universidad de Castilla la Mancha, Spain, in 2016. In 2014 and 2015, he completed a PhD stay at the Green Chemistry Centre of Excellence (GCCE) at the University of York for three months (each year) under supervision of Prof. Michael North, where he worked on the synthesis of cyclic carbonates from the reaction between epoxides and CO2. At the moment, he is working on the preparation of polyesters from ROCOP (Ring Opening Copolymerization) of epoxides and cyclic anhydrides and NIPUs (Non Isocyanate Polyurethanes).