Degradable vinyl copolymers through thiocarbonyl addition-ring-opening (TARO) polymerization

Area of Science:

• Polymer Chemistry
• Materials Science

Background:

• Thionolactones are cyclic thioesters with potential for polymer synthesis.
• Developing degradable polymers is crucial for sustainable materials.

Purpose of the Study:

• To explore the radical copolymerization of dibenzo[c,e]oxepane-5-thione with various vinyl monomers.
• To synthesize degradable polymers with controllable thioester content.

Main Methods:

• Radical copolymerization technique.
• Use of dibenzo[c,e]oxepane-5-thione as a monomer.
• Compatibility with Reversible Addition-Fragmentation chain Transfer (RAFT) polymerization.

Main Results:

• Successfully synthesized copolymers containing backbone thioesters.
• Demonstrated selective cleavage of the thioester bonds.
• Achieved control over the thioester content in the polymer backbone.

Conclusions:

• The copolymerization method provides access to advanced degradable polymers.
• The cleavable thioester linkages offer tunable degradation properties.
• This approach is promising for designing environmentally friendly polymeric materials.