Fig. 8
From: Degradation technologies for condensation polymers mediated by organic catalysts
A Proposed mechanism for the formation of five-membered lactones GBL(Ax) and GBL1 via the ring-opening reaction of CL1. Plausible activation models of the ring-opened structure CL1-O by acidic catalysts (B), basic catalysts (C), and Sn(Oct)2 (D). Adapted with permission from ref. [77]. Copyright 2023 Royal Society of Chemistry
