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Title: Effect of polymer structure and material properties on mechanochemical reaction environments for polymer recycling

Journal Article · · Chem Circularity

Plastic waste accumulation necessitates innovative recycling approaches to achieve sustainability goals. Mechanochemical depolymerization offers a solvent-free, energy-efficient route to convert polymers into valuable monomers. In addition to their chemical properties, the way that polymers absorb kinetic energy is a key parameter of any mechanochemical process. This perspective explores the principles underpinning mechanochemical recycling, emphasizing how deformation and localized transient heating mediate energy transfer between impacts and localized excitations. Key factors such as polymer crystallinity, molecular weight, viscoelasticity, and thermal effects are analyzed to elucidate their role in energy transfer mechanisms during ball milling. This work establishes a foundational framework for the design and optimization of mechanochemical recycling by connecting polymer response to mechanical energy with the intention to improve depolymerization efficiency. Future research opportunities are outlined to advance the integration of polymer science and mechanochemistry for scalable, sustainable plastic upcycling.

Research Organization:
Georgia Tech Research Corporation, Atlanta, GA (United States)
Sponsoring Organization:
US National Science Foundation; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0016486
OSTI ID:
3366522
Journal Information:
Chem Circularity, Journal Name: Chem Circularity; ISSN 3051-2948
Publisher:
Elsevier BVCopyright Statement
Country of Publication:
United States
Language:
English

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