AbstractWith increased environmental concerns and the rising demands for sustainable polymers, e.g., degradable polymers and chemically recyclable polymers, studies on ring-opening polymerization (ROP) of cyclic esters have been developed in recent decades. Biorenewable five-membered γ-butyrolactone (γBL) may be a desirable feedstock for the chemical synthesis of poly(γ-butyrolactone) (PγBL) or for the incorporation of γBL units into polyester chains to modify their properties. Although γBL is traditionally considered to be “nonpolymerizable”, some progress was recently made concerning the ROP of γBL. This mini-review is thus specifically focused on the ROP of γBL and its copolymerization with other cyclic esters.Recent progress in ring-opening (co)polymerization of γ-butyrolactone (γBL) in the presence of various initiating/catalyst systems has been reviewed. Low reaction temperatures and high monomer concentrations are critical for the success of such polymerization, regardless of the different initiating/catalyst systems.

中文翻译：

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γ-丁内酯的开环（共）聚合：综述

摘要随着环境问题的增加和对可持续聚合物（例如可降解聚合物和化学可回收聚合物）的需求不断增加，近几十年来对环酯的开环聚合（ROP）的研究得到了发展。生物可再生五元 γ-丁内酯 (γBL) 可能是化学合成聚 (γ-丁内酯) (PγBL) 或将 γBL 单元掺入聚酯链以改变其性能的理想原料。尽管 γBL 传统上被认为是“不可聚合的”，但最近在 γBL 的 ROP 方面取得了一些进展。因此，这篇小型评论特别关注 γBL 的 ROP 及其与其他环酯的共聚。综述了在各种引发/催化剂体系存在下 γ-丁内酯 (γBL) 开环（共）聚合的最新进展。无论引发剂/催化剂体系如何，低反应温度和高单体浓度对于此类聚合的成功至关重要。