Sonochemical production and characterization of d-fructose functionalized MWCNTs/alanine-based poly (amide-imide) nanocomposites

Abstract

This study presents the preparation of d-fructose covalently functionalized multiwalled carbon nanotube (MWCNT-Fr) and its application in the synthesis of polymer nanocomposites (NCs). Poly(amide-imide) (PAI) as matrix of NCs was synthesized from polycondensation reaction between N-trimellitylimido-l-alanine diacid and 4,4′-diamino diphenyl methane under green conditions. Different percents of functionalized multiwalled carbon nanotube (MWCNT-Fr) were dispersed in the PAI using a solution mixing technique. Increased outer diameter and rough surface of the MWCNT-Fr showed the coating of fructose on the surface of MWCNTs. X-ray diffraction analysis was performed in order to confirm the presence of MWCNT-Fr in the PAI matrix. Surface morphology examination showed that the MWCNT-Fr was very well dispersed in the PAI matrix. The thermal properties of the blends were also evaluated. Our results demonstrated according to the limited oxygen index values that these NCs could be classified as self-extinguishing materials.