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Synthesis of Soluble High Molar Mass Poly(Phenylene Methylene)-Based Polymers
Marco F D'Elia1, Yingying Yu1, Melvin Renggli1
1Laboratory for Multifunctional Materials, Department of Materials, ETH Zürich, 8093 Zürich, Switzerland.
Polymers
|April 13, 2024
Summary
Researchers developed a new method to synthesize high molar mass poly(phenylene methylene) (PPM) polymers using bis-chloromethyl durene (BCMD) as a branching agent. This advance enables new applications for these fluorescent anticorrosion materials.
Area of Science:
- Polymer Chemistry
- Materials Science
- Organic Synthesis
Background:
- Poly(phenylene methylene) (PPM) is a polymer known for its anticorrosion and fluorescent properties.
- Existing synthetic routes limit the production of soluble, high molar mass PPM.
Purpose of the Study:
- To investigate the use of bifunctional bis-chloromethyl durene (BCMD) as a branching agent to synthesize high molar mass PPM.
- To explore the influence of BCMD on the properties of PPM.
Main Methods:
- Synthesis of PPM using BCMD as a branching agent.
- Gel permeation chromatography (GPC) and NMR analysis to monitor reaction progress and polymer characteristics.
- Thermal and optical characterization of the resulting polymers.
Main Results:
- Successfully synthesized PPM-based copolymers with the highest molar mass reported to date (up to 205,300 g mol⁻¹).
- The BCMD approach proved versatile with different catalysts.
- Branching did not negatively impact the thermoplastic behavior or fluorescence of the PPM materials.
Conclusions:
- Bifunctional bis-chloromethyl durene (BCMD) is an effective branching agent for producing high molar mass, soluble PPM.
- The developed method offers a versatile route to advanced PPM materials with retained desirable properties.
- These high molar mass PPM compounds are promising for various applications.
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