Biobased Polyimine Vitrimers: Promising Materials for Fluorescence Quenching, Anticounterfeiting, and Plastic Degradation.

Using glucose, one of the readily available biomasses provides an industrially relevant derivative 5-hydroxymethyl furfural (5-HMF) containing two versatile functionalities. 2,5-Furandicarbaldehyde (DFF) has been synthesized in high yields via chemo-selective oxidation of 5-HMF. Biobased thermoset vitrimers were prepared by the condensation of DFF with various amines such as polyethylenimine, Bis-[4-(4-aminophenoxy)-phenyl] propane (BAPP), 1,4-diaminobutane, and (l)-Lysine. This paper reports the design, synthesis, and characterization of fluorescent biobased vitrimers and poly imines for sensing of various aromatic monoamines, diamines, and also Pd metal. It was further demonstrated that biobased polyimine vitrimers are apt as anticounterfeiting material, for plastic degradation, and for synthesis of nanoparticles in an effective way. The fluorescent material offered good thermal stability and obeyed the property of pseudoplasticity having Non-Newtonian fluids.