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Updated: Jul 7, 2026

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
Published on: December 16, 2022
POT-PISA: core-degradable particles via aqueous radical ring-opening polymerisation-induced self-assembly using
Thomas J Neal1, Jingming Cao1, Bastien Luzel2
1Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 17 avenue des Sciences, 91400 Orsay, France. julien.nicolas@universite-paris-saclay.fr.
Researchers developed novel core-degradable nanoparticles using 7-phenyloxepane-2-thione (POT) via aqueous radical ring-opening polymerization. These nanoparticles show efficient degradation in the presence of amines, reducing core molar mass by up to 85%.
Area of Science:
- Polymer Chemistry
- Materials Science
- Nanotechnology
Background:
- Nanoparticles offer unique properties for various applications.
- Developing degradable nanoparticles is crucial for controlled release and environmental considerations.
- Existing nanoparticle synthesis methods may lack efficient degradation mechanisms.
Purpose of the Study:
- To synthesize novel core-degradable nanoparticles.
- To investigate the degradation behavior of these nanoparticles in the presence of amines.
- To establish a new method for creating functional degradable nanomaterials.
Main Methods:
- Aqueous radical ring-opening polymerization-induced self-assembly was employed.
- 7-phenyloxepane-2-thione (POT) was used as the monomer.
- Degradation studies were conducted using amine-treated samples.
Main Results:
- Successful synthesis of core-degradable nanoparticles was achieved.
- Nanoparticles demonstrated efficient degradation upon exposure to amines.
- Molar mass reduction of the nanoparticle core reached up to 85%.
Conclusions:
- Novel core-degradable nanoparticles were successfully synthesized using POT.
- The developed nanoparticles exhibit controlled degradation triggered by amines.
- This work presents a promising platform for advanced degradable nanomaterials.
Related Concept Videos
Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)
Radical Chain-Growth Polymerization: Overview
Radical Chain-Growth Polymerization: Mechanism
Cationic Chain-Growth Polymerization: Mechanism
Free-Radical Chain Reaction and Polymerization of Alkenes
Radical Chain-Growth Polymerization: Chain Branching

