Abstract
A thermally stable and optically active poly(amide–ester–imide) (PAEI) was prepared from diol: N,N′-(1,3,5,7-tetraoxo-5,7-dihydropyrrolo[3,4-f]isoindole-2,6-(1H,3H)-diyl)bis-(4-hydroxybenzamide). The structure of the polymer was determined by means of 1H NMR and Fourier transform infrared spectroscopy (FT-IR), elemental analysis; also it was studied with specific rotation technique, X-ray diffraction (XRD), and field emission scanning electron microscopy (FE-SEM). Then, three series of PAEI/modified TiO2 nanocomposites (NC)s with 5, 10, and 15 % of TiO2 nanoparticles (NP)s contents were prepared via ultrasonic irradiation technique. The properties of the synthesized NCs were studied by FT-IR, XRD, FE-SEM, transmission electron microscopy, UV–vis spectroscopy and thermogravimetric analysis methods. It was found that the NCs exhibit enhanced thermal properties compared with the neat PAEI.
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Acknowledgments
The authors thank the Research Affairs Division Isfahan University of Technology (IUT), Isfahan, for partial financial support. Further financial support from Iran Nanotechnology Initiative Council (INIC), National Elite Foundation (NEF) and Center of Excellence in Sensors and Green Chemistry Research (IUT) is gratefully acknowledged. We also thank Miss. M. Khani and Miss. M. Madani for their helpful assistance.
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Mallakpour, S., Aalizadeh, R. Preparation and characterization of thermally stable poly(amide–ester–imide) nanocomposites based on N,N′-(1,3,5,7-tetraoxo-5,7-dihydropyrrolo [3,4-f]isoindole-2,6-(1H,3H)-diyl)bis-(4-hydroxybenzamide) and surface-coated TiO2 nanoparticles. Polym. Bull. 73, 3019–3032 (2016). https://doi.org/10.1007/s00289-016-1638-y
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DOI: https://doi.org/10.1007/s00289-016-1638-y