Synthesis of functional poly(disubstituted acetylene)s through the post-polymerization modification route

Area of Science:

• Polymer Chemistry
• Organic Synthesis
• Materials Science

Background:

• Metathesis polymerization of disubstituted acetylenes (DSAs) using Mo/W-Sn catalysts is key for synthesizing poly(disubstituted acetylene)s (PDSAs).
• These catalysts are sensitive to polar functionalities, limiting direct synthesis of functional PDSAs.
• Developing alternative routes to incorporate diverse functionalities into PDSAs is crucial.

Purpose of the Study:

• To review recent advancements in preparing functional poly(disubstituted acetylene)s (PDSAs).
• To highlight the effectiveness of post-polymerization modification strategies for PDSAs synthesis.
• To showcase methods for creating PDSAs with latent reactive groups.

Main Methods:

• Utilizing Mo/W-Sn complex catalysts for metathesis polymerization of DSAs with latent functionalities.
• Employing post-polymerization modification techniques on the synthesized PDSAs.
• Demonstrating strategies such as click chemistry, Michael-type additions, and activated esters.

Main Results:

• Successful synthesis of various functional PDSAs through post-polymerization modification.
• Demonstration of latent reactive functionalities that are compatible with polymerization catalysts.
• Validation of click chemistry and Michael-type addition reactions for PDSAs functionalization.

Conclusions:

• Post-polymerization modification is an efficient and versatile strategy for synthesizing diverse functional PDSAs.
• This approach overcomes the limitations of direct polymerization of functional monomers.
• Enables the creation of advanced polymeric materials with tailored properties.