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Updated: Aug 14, 2026
08:12
Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
Published on: December 16, 2022
Self-Immolative Poly(Benzyl Ether)s: Design Principles and Controlled Depolymerization
Ji Woo Kim1, Yewon Kang1, Hyungwoo Kim1
1School of Polymer Science and Engineering, Chonnam National University, Gwangju, South Korea.
Chemistry (Weinheim an Der Bergstrasse, Germany)
|August 13, 2026
Summary
Quinone-methide (QM)-based poly(benzyl ether)s (PBEs) are advanced self-immolative polymers that fully depolymerize upon a single trigger. Their design enables controlled degradation for applications in recycling and drug delivery.
Area of Science:
- Polymer Chemistry
- Materials Science
- Organic Chemistry
Background:
- Self-immolative polymers (SIPs) are stimuli-responsive materials designed for complete depolymerization.
- Quinone-methide (QM)-based poly(benzyl ether)s (PBEs) offer high stability and predictable disassembly kinetics.
Purpose of the Study:
- To review the design principles of QM-based PBEs.
- To discuss their depolymerization mechanisms and recent advances in end-cap engineering.
- To highlight their applications in various fields.
Main Methods:
- Review of fundamental design principles of PBEs.
- Emphasis on thermodynamic role of low ceiling temperature (Tc) and 1,6-elimination mechanism.
- Discussion of modular end-cap engineering for spatiotemporal control.
Main Results:
- PBEs depolymerize via a 1,6-elimination mechanism driven by aromaticity restoration and entropic gain.
- End-cap engineering allows precise control over depolymerization triggered by chemical, photochemical, or biological stimuli.
- PBEs demonstrate potential in signal amplification, controlled cargo release, and chemical recycling.
Conclusions:
- QM-based PBEs represent a versatile platform for advanced functional macromolecular design.
- Their controlled depolymerization capabilities offer significant potential for sustainable materials and applications.
- Further research into PBEs can redefine the boundaries of stimuli-responsive polymer development.
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