SYNTHESIS AND CHARACTERIZATION OF NOVEL POLY(AMIDE-IMIDE) NANOCOMPOSITE/SILICATE PARTICLES BASED....

In this study, N-pyromellitimide-L-phenyl alanine was first synthesised and purified by reacting Pyromellitic anhydride with L-phenyl alanine in the presence of acid acetic. FT-IR and 1H-NMR were used to characterise these monomers. Then, poly(amide-imide) was synthesised via direct polymerization of N-pyromellitimide-L-phenyl alanine with 4,4'-diamino diphenyl sulfone in the presence of triphenyle phosphate (TPP), calcium chloride (CaCl2), pyridine (Py), and N-methyle-2-pyrolidone (NMP). Elemental analysis and FT-IR were used to characterise the synthesis poly(amide-imide). Two new PAI nanocomposites reinforced with 5% and 10% organoclay particles were created. Then, using scanning electron microscopy (SEM), X-ray diffraction (XRD), and FT-IR procedures, organoclay was integrated into PAI. Images from scanning electron microscopy and x-ray diffraction revealed that the silicate nano particle and polymer matrix combination method was successful. They were also tested for optical transparency using uv-vis, thermal gravimetric analysis (TGA/DTG), and compared to pure PAI. Furthermore, the results reveal that the presence of the mineral material reduces light passage, and that this reduction has a direct relationship with the percentage of organoclay in the PAI matrix. We also discovered that incorporating clay into the polymer increased its heat stability. This increase was caused by the great thermal stability of mineral particles as well as the strong dipole attraction between mineral layers and polymer chains.

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