Preparation and study of surface modified ZnO nanoparticles in copoly (amid-imide) nanocomposite films containing triptycene

Document Type : Short Communication

Authors

Department of Chemistry, Yasouj University, Yasouj 75918-74831, Islamic Republic of Iran.

Abstract

A diamine monomer, Bis (4-aminophenoxy) phenyl triptycene was prepared through a nucleophilic substitution in the presence of potassium carbonate in N, N-dimethylformamide, followed by catalytic reduction with hydrazine and Pd/C. New aromatic poly (amide-imide) containing a triptycene unit were synthesized from aromatic diamine and diacid by using triphenyl phosphate and pyridine as condensing reagents in NMP in the presence of metal salt. The resulting PAI were readily soluble in a variety of organic solvents and formed strong and tough films via solution casting. The poly (amide-imide) had inherent viscosities of 0.35 dL/g. To obtain the homogeneous distribution of ZnO in polymer matrix, the surface of nanoparticles was modified to organophile with γ-aminopropyltriethoxysilane (KH550). The obtained NCs were characterized by Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis, X-ray diffraction, scanning electron microscopy (SEM).

Graphical Abstract

Preparation and study of surface modified ZnO nanoparticles in copoly (amid-imide) nanocomposite films containing triptycene