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Pressure-Sensitive Adhesives Based on CO2-Βased Polymer: Structure-Regulated Viscoelasticity
Zhenzhen Zhou1,2, Xiaoshen Wang1,2, Shunjie Liu1,2
1Key Laboratory of Polymer Ecomaterials, Chinese Academy of Sciences, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China.
Chemsuschem
|March 19, 2025
Summary
Researchers developed a novel CO2-based poly(carbonate-ether) for pressure-sensitive adhesives (PSAs). This sustainable material offers tunable properties and excellent performance without additives, showcasing a new path for the PSA industry.
Area of Science:
- Polymer Chemistry
- Materials Science
- Sustainable Chemistry
Background:
- Pressure-sensitive adhesives (PSAs) rely on polymer viscoelastic properties.
- Current PSAs often require tackifiers and additives for optimal performance.
Purpose of the Study:
- To develop a novel CO2-based poly(carbonate-ether) for PSA applications.
- To demonstrate tunable viscoelastic properties through molecular weight and carbonate unit content.
- To achieve high-performance PSAs without additional tackifiers or additives.
Main Methods:
- Copolymerization of carbon dioxide (CO2) and propylene oxide.
- Synthesis of poly(carbonate-ether) copolymers.
- Characterization of viscoelastic properties, molecular weight (Mn), and carbonate unit (CU) content.
Main Results:
- Successfully synthesized CO2-based poly(carbonate-ether) with tunable properties.
- Optimized polymer (PCE9) achieved 5.70 N/cm peel strength and 2760 minutes static shear adhesion.
- Demonstrated excellent PSA performance solely based on polymer structure, without additives.
Conclusions:
- CO2-based copolymers offer a sustainable route for advanced PSA materials.
- Precise control over Mn and CU content enables tailored viscoelastic properties.
- This research provides a novel pathway for the sustainable development of the PSA industry.
