Living Coordination Polymerization of a Six‐Five Bicyclic Lactone to Produce Completely Recyclable Polyester |
| |
Authors: | Dr Jian‐Bo Zhu Prof?Dr Eugene Y‐X Chen |
| |
Institution: | Department of Chemistry, Colorado State University, Fort Collins, Colorado, USA |
| |
Abstract: | The development of chemically recyclable polymers promises a closed‐loop approach towards a circular plastic economy but still faces challenges in structure/property diversity and depolymerization selectivity. Here we report the first successful coordination ring‐opening polymerization of 4,5‐trans‐cyclohexyl‐fused γ‐butyrolactone ( M1 ) with lanthanide catalysts at room temperature, producing P( M1 ) with Mn up to 89 kg mol?1, high thermal stability, and a linear or cyclic topology. The same catalyst also catalyses selective depolymerization of P( M1 ) back to M1 exclusively at 120 °C. This coordination polymerization is also living, enabling the synthesis of well‐defined block copolymer. |
| |
Keywords: | coordination polymerization living polymerization polyester recyclable polymer ring-opening polymerization |
|
|