POLY 280 |
| Covalent Organic Frameworks (COFs) are a new class of porous materials that utilize the assembly of poly(boronic acid)s and poly(alcohol)s through covalent but reversible boronate ester linkages. Thermally stable pore networks are formed as a result. We have developed a synthetic strategy to incorporate functionality into the pores. Initially, this involved alkylation of the pore walls in order to create diversity in the pore size and structure of the parent COF-18Å. We now extend this strategy to incorporate active functionality, namely carboxylic acid groups. To accommodate this, we designed a larger pore structure, COF-30Å, a two dimensional hexagonal COF and have devised a means by which to introduce carboxylic acid groups onto the pore walls via a pre-polymerization modification of the bis-diol monomer, 1,2,4,5-tetrahydroxybenzene. Synthesis and characterization of these new COF systems will be discussed. |
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Functional Nanomaterials from New Polymer Synthetic Methodologies
2:00 PM-5:50 PM, Monday, April 7, 2008 Hilton New Orleans Riverside -- Grand Salon 7/10, Oral
Division of Polymer Chemistry |