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Microfluidic-based Synthesis of Covalent Organic Frameworks (COFs): A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface
Published on: July 10, 2017
Postsynthetic functionalization of 3D covalent organic frameworks.
David N Bunck1, William R Dichtel
1Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY 14853-1301, USA.
Chemical Communications (Cambridge, England)
|February 19, 2013
Summary
We developed a new method to modify 3D covalent organic frameworks (COFs). This technique successfully functionalized COF-102 while preserving its structure and porosity.
Area of Science:
- Materials Science
- Organic Chemistry
- Nanotechnology
Background:
- Covalent organic frameworks (COFs) are crystalline porous polymers with tunable properties.
- Functionalizing COFs is crucial for tailoring their applications.
- Existing methods often struggle to maintain the structural integrity of COFs during modification.
Purpose of the Study:
- To develop a novel tandem truncation-functionalization strategy for 3D COFs.
- To investigate the modification of pore wall functionalities in COF-102.
- To assess the impact of functionalization on the structural and porous properties of COF-102.
Main Methods:
- Utilized a 3D covalent organic framework, COF-102, as the model system.
- Employed thiol-ene coupling reactions under mild conditions.
- Incorporated allyl groups within the pore walls of COF-102 for functionalization.
Main Results:
- Achieved high conversion rates for the thiol-ene coupling reaction.
- Successfully functionalized the allyl groups within the COF-102 pore walls.
- Demonstrated that the functionalization process preserved the crystallinity of the parent framework.
- Maintained the permanent porosity of the modified COF-102.
Conclusions:
- The tandem truncation-functionalization strategy is effective for modifying 3D COFs.
- This method allows for precise functionalization without compromising the structural integrity of COFs.
- The preserved porosity and crystallinity open avenues for advanced applications of functionalized COFs.
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