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Dual Gas-responsive Fluorescent Diblock Copolymer Synthesized via RAFT Polymerization
Xiaozhen Zhang1, Jinjin Wang1, Shijia Zhou2,3
1School of Petrochemical Engineering, Liaoning Petrochemical University, Fushun, Liaoning, 113001, China.
Journal of Fluorescence
|January 19, 2022
Summary
Researchers developed dual-responsive fluorescent polymers that change structure in response to carbon dioxide (CO2) and oxygen (O2). These polymers show potential for applications like drug delivery and biosensing.
Area of Science:
- Polymer Chemistry
- Materials Science
- Biotechnology
Background:
- Stimulus-responsive polymers with luminescence are crucial for controlled drug release, fluorescent probes, and biological stents.
- Developing polymers sensitive to specific environmental cues is key for advanced material applications.
Purpose of the Study:
- To synthesize novel carbon dioxide (CO2)/oxygen (O2) dual-responsive fluorescent diblock copolymers.
- To investigate the self-assembly and disassembly behavior of these copolymers in aqueous solutions.
Main Methods:
- Reversible Addition-Fragmentation chain transfer (RAFT) polymerization was employed for copolymer synthesis.
- Two fluorescent monomers, DEAEMA (CO2-responsive) and tFMA (O2-responsive), were utilized as luminescence sources.
Main Results:
- The synthesized copolymers exhibited high sensitivity to CO2.
- The diblock copolymers demonstrated reversible micelle formation and disassembly in aqueous solutions upon sequential exposure to CO2 and O2.
Conclusions:
- The study successfully synthesized dual-responsive fluorescent diblock copolymers.
- These polymers show promise for applications requiring precise control over self-assembly and disassembly in response to specific stimuli.
