PHYSICO-CHEMICAL PROPERTIES OF POLYHEDRAL OLIGOMERIC SILESQUIOXANE COVALENT ORGANIC FRAMEWORKS FOR NAPROXEN ADSORPTION

Abstract

Covalent organic frameworks are porous crystalline compounds prepared from organic material bonded together by strong reversible covalent bonds that have a durable effect on the geometry arrangements and permeability. These substances are entirely made up of light elements like H, B, C, N, O, and Si. COF-S4, OAPS and 1,5-Dihydroxyanthraquionone (1,5-DHAQ), was successfully synthesized by condensation (solvothermal) via a Schiff base reaction (R₁R₂C=NR'), with a molar ratio of 1:8 for OAPS to linker, at a temperature 120 ℃. The compound obtained was investigated using several spectroscopic techniques, including PXRD, FTIR, NMR, BET, FESEM, EDX and TGA. The results obtained shown that the nanomaterial synthesized is promising, as they are capable for several applications, such as Adsorption, Gas capture, Catalysis and others.