<p>Degradable polymer synthesis has gained significant attention in recent years, driven by the need for sustainable and recyclable polymeric materials. Reversible addition fragmentation chain transfer (RAFT) polymerization, a controlled radical polymerization technique, offers precise control over molecular weight, low dispersity, and broad functional group tolerance, enabling the synthesis of a wide range of polymer architectures. This review summarizes recent advances in the RAFT-based synthesis of polymers, with particular emphasis on their degradation pathways. Reported depolymerization strategies for monomer recovery, including end-group unzipping mechanisms and stimulus triggered activation by heat or light, are discussed. In addition, strategies for bond cleavage in RAFT polymers are examined in the context of various polymer topologies including reductive, hydrolytic, enzymatic, or aminolytic approaches. These advances position RAFT-derived degradable polymers as a powerful platform for sustainable additive manufacturing and circular materials design. Overall, this review provides valuable insights into how degradability can be effectively achieved via RAFT polymerization and serves as a foundation and inspiration for future material design, modifications, and applications, particularly in additive manufacturing.</p> Graphical Abstract <p></p>

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Synthesis of degradable polymers via RAFT polymerization

  • Dean Afsar,
  • Ayesha Imiya Mudiyanselage,
  • Patricia R. Calvo

摘要

Degradable polymer synthesis has gained significant attention in recent years, driven by the need for sustainable and recyclable polymeric materials. Reversible addition fragmentation chain transfer (RAFT) polymerization, a controlled radical polymerization technique, offers precise control over molecular weight, low dispersity, and broad functional group tolerance, enabling the synthesis of a wide range of polymer architectures. This review summarizes recent advances in the RAFT-based synthesis of polymers, with particular emphasis on their degradation pathways. Reported depolymerization strategies for monomer recovery, including end-group unzipping mechanisms and stimulus triggered activation by heat or light, are discussed. In addition, strategies for bond cleavage in RAFT polymers are examined in the context of various polymer topologies including reductive, hydrolytic, enzymatic, or aminolytic approaches. These advances position RAFT-derived degradable polymers as a powerful platform for sustainable additive manufacturing and circular materials design. Overall, this review provides valuable insights into how degradability can be effectively achieved via RAFT polymerization and serves as a foundation and inspiration for future material design, modifications, and applications, particularly in additive manufacturing.

Graphical Abstract