Citation: Hojjat Toiserkani. Preparation and Characterization of Poly(amide-imide)/ZnO Nanocomposites Containing Pendent Benzoxazole and Benzimidazole Segments[J]. Chinese Journal of Polymer Science, ;2016, 34(3): 288-297. doi: 10.1007/s10118-016-1754-z shu

Preparation and Characterization of Poly(amide-imide)/ZnO Nanocomposites Containing Pendent Benzoxazole and Benzimidazole Segments

Hojjat Toiserkani ^1,,

1.
Department of Chemistry, College of Sciences and College of Oil Engineering, Hormozgan University, Bandar Abbas 3995, Iran

Corresponding author: Hojjat Toiserkani,
Received Date: 16 August 2015
Revised Date: 29 October 2015

Fund Project: This work was financially supported by the Research Council of Hormozgan University.

In the present investigation, novel poly(amid-imide)/zinc oxide nanocomposites (PAI/ZnO NCs) containing benzoxazole and benzimidazole pendent groups with different amounts of modified zinc oxide nanoparticles (ZnO NPs) were successfully prepared via the ex situ method. Poly(amid-imide) (PAI) was prepared by direct polycondensation of 2-[3,5-bis(N-trimellitimidoyl)phenyl]benzoxazole (DCA) with 5-(2-benzimidazole)-1,3-phenylenediamine (DAMI) and provided the polymeric matrix with well-designed groups. The surface of ZnO NPs was functionalized with 3-aminopropyltriethoxysilane (APS) coupling agent to have a better dispersion and enhancing possible interactions of NPs with functional groups of polymer matrix. The amount of APS bonded to the ZnO surface was determined by thermogravimetric analysis. PAI/ZnO nanocomposites were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). SEM analysis showed that the modified ZnO nanoparticles were homogeneously dispersed in polymer matrix. In addition, TGA data indicated an enhancement of thermal stability of the nanocomposite compared with the neat polymer.
- Poly(amide-imide),
- ZnO nanoparticles,
- Nanocomposites,
- Surface modification,
- Pendent group
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