Versatile Postmodification of Conjugated Microporous Polymers Using Thiol-yne Chemistry.

Area of Science:

• Materials Science
• Organic Chemistry
• Polymer Science

Background:

• Microporous networks are crucial for applications like gas storage and separation.
• Functionalization of these networks is key to tailoring their properties.
• Radical thiol-yne chemistry offers a versatile platform for network modification.

Purpose of the Study:

• To functionalize microporous networks using radical thiol-yne chemistry with aliphatic alcohols.
• To investigate the tunability of functionalization degree.
• To analyze the impact of modification on the network's porosity.

Main Methods:

• Employing radical thiol-yne click chemistry for network functionalization.
• Utilizing aliphatic alcohols as modifying agents.
• Performing porosity analysis (e.g., BET analysis) to quantify changes.

Main Results:

• Successful modification of microporous networks with aliphatic alcohols.
• Demonstrated tunability of functionalization by controlling thiol reactant concentration.
• Observed preservation of microporosity within a specific functionalization range.
• Noted a decrease in pore size correlated with increased functionalization.

Conclusions:

• Radical thiol-yne chemistry provides an effective route for controlled functionalization of microporous materials.
• The degree of functionalization directly influences pore size and overall porosity.
• Careful control over reaction conditions is necessary to balance functionalization and pore structure integrity.