Related Experiment Video
Updated: Jun 27, 2026

Depolymerizable Olefinic Polymers Based on Fused-Ring Cyclooctene Monomers
Published on: December 16, 2022
Chemically Recyclable Thermoplastic Elastomers: Preparation, Properties, and On-Demand Depolymerization
1State Key Laboratory of Advanced Optical Polymer and Manufacturing Technology, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China.
Thermoplastic elastomers (TPEs) are now chemically recyclable, enabling selective depolymerization back to monomers. This review covers their preparation, properties, and recycling, addressing plastic waste challenges.
Area of Science:
- Polymer Chemistry
- Materials Science
- Sustainable Chemistry
Background:
- Significant progress in chemically recyclable polymers addresses plastic waste.
- Thermoplastic elastomers (TPEs) with on-demand depolymerization are under-explored due to complex structures.
- Challenges exist in selectively recycling diverse monomers from TPEs.
Purpose of the Study:
- To review recent advancements in chemically recyclable thermoplastic elastomers (TPEs).
- To focus on the preparation, mechanical properties, and recycling of these TPEs.
- To discuss future directions for sustainable TPE development.
Main Methods:
- Literature review of chemically recyclable TPEs.
- Categorization of TPEs based on backbone structure (copolyesters, polyurethanes, polyolefins).
- Discussion of dynamically cross-linked elastomers with chemical recyclability.
Main Results:
- Overview of various chemically recyclable TPEs, including their synthesis and properties.
- Demonstration of on-demand depolymerization and recycling capabilities.
- Identification of key TPE classes amenable to chemical recycling.
Conclusions:
- Chemically recyclable TPEs offer a promising solution for plastic waste.
- Further research is needed to overcome challenges in TPE recycling.
- Future directions include optimizing TPE design for enhanced recyclability.
Related Concept Videos
Types of Step-Growth Polymers: Polyesters
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the polymer...
Olefin Metathesis Polymerization: Overview
Ruthenium-based Grubbs catalyst is the most commonly used catalyst for olefin metathesis polymerization. Grubbs catalyst consists of a...
Classification and Mechanical Properties of Synthetic Polymers
Olefin Metathesis Polymerization: Acyclic Diene Metathesis (ADMET)
Similar to cross-metathesis, ADMET also involves the formation of metallacyclobutane intermediate by [2+2] cycloaddition of one of the double bonds of a terminal diene with...
Free-Radical Chain Reaction and Polymerization of Alkenes
Olefin Metathesis Polymerization: Ring-Opening Metathesis Polymerization (ROMP)

