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Optically active poly(amide–imide)/TiO2 nanocomposites containing amino acid moieties: synthesis and properties

Amino Acids volume 47, pages 2293–2302 (2015)Cite this article

Abstract

The novel optically active poly(amide–imide) (PAI)/TiO2 nanocomposites containing fluorene moieties have been successfully synthesized through ultrasonic irradiation. The surface of nanoparticles was chemically modified with γ-aminopropyltriethoxyl silane to enhance the compatibility with polymeric matrix and to avoid the aggregation of nanoparticles. The dispersion of surface-modified TiO2 in PAI film was confirmed by the transmission electron microscope (TEM) analysis showing the well-dispersed nanosized TiO2 nanoparticles. The thermal stabilities and optical properties of PAI/surface-modified TiO2 nanocomposite films were also investigated. The thermogravimetric analysis data showed an improvement of thermal stability of novel nanocomposite films as compared to the pure polymer.

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Affiliations

  1. Department of Chemistry, Yasouj University, 75914-74831, Yasouj, Islamic Republic of Iran

    Zahra Rafiee & Elham Zare

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  1. Zahra Rafiee
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  2. Elham Zare
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Correspondence to Zahra Rafiee.

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Handling Editor: H. S. Sharma.

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Rafiee, Z., Zare, E. Optically active poly(amide–imide)/TiO2 nanocomposites containing amino acid moieties: synthesis and properties. Amino Acids 47, 2293–2302 (2015). https://doi.org/10.1007/s00726-015-2008-z

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  • DOI: https://doi.org/10.1007/s00726-015-2008-z

Keywords

  • Poly(amide–imide)
  • Nanocomposite
  • Amine-functionalized TiO2
  • TiO2