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Facile and Efficient Preparation of Tri-component Fluorescent Glycopolymers via RAFT-controlled Polymerization

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Dual Gas-responsive Fluorescent Diblock Copolymer Synthesized via RAFT Polymerization.

Xiaozhen Zhang¹, Jinjin Wang¹, Shijia Zhou^2,3

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.

Keywords:

Block polymer Carbazole Fluorescence RAFT Stimulus-responsive polymer

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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.