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<p>Polyolefins, due to their chemical inertness and structural stability, are extremely resistant to degradation in the environment and have become a major component of global plastic pollution. In contrast to the mechanical recycling and chemical degradation to small-molecule compounds, the directed degradation of polyolefins into oligomers with specific chain lengths and functional structures has gradually emerged as a research hotspot, showing significant advantages in the above aspects. This review provides a systematic overview of recent advances in degradation strategies, mechanistic understanding, product evolution, and end-use integration for polyolefin upcycling, while assessing key challenges and future opportunities, with the aim of advancing both the theoretical foundations and technological frameworks for high-value waste plastic transformation.</p>

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Recent advances in the directed degradation of polyolefins into oligomers

  • 期刊论文

  • 发表日期：

    2026年5月7日

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  • Binzhi Zhao,
  • Yi-Han Yu,
  • Chaochun Wei,
  • Ning Jiao

摘要

Polyolefins, due to their chemical inertness and structural stability, are extremely resistant to degradation in the environment and have become a major component of global plastic pollution. In contrast to the mechanical recycling and chemical degradation to small-molecule compounds, the directed degradation of polyolefins into oligomers with specific chain lengths and functional structures has gradually emerged as a research hotspot, showing significant advantages in the above aspects. This review provides a systematic overview of recent advances in degradation strategies, mechanistic understanding, product evolution, and end-use integration for polyolefin upcycling, while assessing key challenges and future opportunities, with the aim of advancing both the theoretical foundations and technological frameworks for high-value waste plastic transformation.