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08:42
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
Crystalline covalent organic frameworks with hydrazone linkages.
Fernando J Uribe-Romo1, Christian J Doonan, Hiroyasu Furukawa
1Center for Reticular Chemistry, Department of Chemistry and Biochemistry, University of California, Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, USA.
Journal of the American Chemical Society
|July 5, 2011
Summary
Two new covalent organic frameworks (COFs), COF-42 and COF-43, were synthesized. These stable, porous materials expand the potential applications of this emerging class of porous materials.
Area of Science:
- Materials Science
- Organic Chemistry
- Nanotechnology
Background:
- Covalent organic frameworks (COFs) are crystalline porous polymers with tunable properties.
- Developing new COFs with enhanced stability and porosity is crucial for advanced applications.
Purpose of the Study:
- To synthesize and characterize two novel 2D covalent organic frameworks, COF-42 and COF-43.
- To investigate the structural, chemical, and thermal properties of the newly synthesized COFs.
Main Methods:
- Condensation reaction between 2,5-diethoxyterephthalohydrazide and 1,3,5-triformylbenzene or 1,3,5-tris(4-formylphenyl)benzene.
- Characterization of the resulting materials using techniques to confirm crystallinity, porosity, and stability.
Main Results:
- Successful synthesis of two new 2D COFs, COF-42 and COF-43, linked by hydrazone bonds.
- Both COFs exhibit high crystallinity, excellent chemical and thermal stability, and permanent porosity.
- The frameworks are extended two-dimensional porous structures.
Conclusions:
- The synthesis of COF-42 and COF-43 demonstrates a viable route to new hydrazone-linked COFs.
- These materials possess desirable properties, including stability and permanent porosity, for potential applications.
- The study expands the library of available COFs, offering new possibilities in materials science.
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