Article (Scientific journals)
From Polyethylene to Conjugated Polyenes: a Mechanochemical One‐Pot Upcycling Strategy for Selective Functionalization
Ben Ayed, Emna; Delcorps, Juliette; COULEMBIER, Olivier
2025In Advanced Sustainable Systems
Peer reviewed
 

Files


Full Text
Advanced Sustainable Systems - 2025 - Ben Ayed - From Polyethylene to Conjugated Polyenes a Mechanochemical One‐Pot.pdf
Author postprint (925.11 kB)
Download

All documents in ORBi UMONS are protected by a user license.

Send to



Details



Abstract :
[en] AbstractUpcycling strategies for polyolefins remain a significant challenge due to their chemical inertness and complex degradation pathways. A solvent‐free, mechanochemical approach is reported to introduce conjugated polyene sequences into polyethylene (PE) via a twin‐screw extrusion process. The controlled iodination/elimination strategy enables the stereoselective formation of cis‐transoid polyenes, a configuration typically achieved under cryogenic conditions but here accessible at high temperatures (106  °C) in a melt‐processing environment. This novel approach is confirmed through spectroscopic characterization, including ATR‐FTIR, Raman, and CP‐MAS 13C NMR, and a Diels–Alder reaction that verified the stereochemistry of the resulting polyene. The polymer shows remarkable oxidative stability, with no degradation observed even after six months under ambient conditions. The unsaturated fragments within the polymer exhibit distinct reactivity, allowing selective post‐functionalization via epoxidation under reactive extrusion conditions. Mechanochemical epoxidation with m‐chloroperoxybenzoic acid (mCPBA) improves solubility and processability without chain fragmentation, as evidenced by SEC analysis. This work presents a scalable route for the selective functionalization of polyolefins, opening new avenues for their valorization into advanced materials and demonstrating the feasibility of high‐temperature processing for the formation of conjugated polyenes.
Disciplines :
Chemistry
Author, co-author :
Ben Ayed, Emna;  Laboratory of Polymeric and Composite Materials University of Mons Place du Parc 23 Mons 7000 Belgium
Delcorps, Juliette ;  Université de Mons - UMONS > Faculté des Sciences > Service des Matériaux Polymères et Composites
COULEMBIER, Olivier  ;  Université de Mons - UMONS > Faculté des Sciences > Service des Matériaux Polymères et Composites
Language :
English
Title :
From Polyethylene to Conjugated Polyenes: a Mechanochemical One‐Pot Upcycling Strategy for Selective Functionalization
Publication date :
12 June 2025
Journal title :
Advanced Sustainable Systems
ISSN :
2366-7486
eISSN :
2366-7486
Publisher :
Wiley
Peer reviewed :
Peer reviewed
Research unit :
S816 - Matériaux Polymères et Composites
Research institute :
Research Institute for Materials Science and Engineering
Funders :
AXA Research Fund
Available on ORBi UMONS :
since 16 June 2025

Statistics


Number of views
3 (0 by UMONS)
Number of downloads
4 (0 by UMONS)

Scopus citations®
 
0
Scopus citations®
without self-citations
0
OpenCitations
 
0
OpenAlex citations
 
0

Bibliography


Similar publications



Contact ORBi UMONS