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      https://www.ias.ac.in/article/fulltext/boms/034/04/0595-0599

    • Keywords

       

      Thermal stability; polymer nanocomposites; low temperature electron microscopy.

    • Abstract

       

      Low-temperature transmission electron microscopy (TEM) studies were performed on polystyrene (PS, 𝑀w = 234 K) – Au nanoparticle composite thin films that were annealed up to 350°C under reduced pressure conditions. The composite thin films were prepared by wet chemical approach and the samples were then subsequently spin-coated on a carbon-coated copper grid for TEM measurements. TEM measurements were performed at liquid nitrogen temperatures to reduce the electron–beam-induced radiation damage. The results showed a marginal increase in Au nanoparticle diameter (2.3 nm–3.6 nm) and more importantly, an improved thermal stability of the polystyrene (PS) composite film much above its glass transition temperature

    • Author Affiliations

       

      Umananda M Bhatta1 Deepa Khushalani2 P V Satyam1

      1. Institute of Physics, Sachivalaya Marg, Bhubaneswar 751 005, India
      2. Materials Chemistry Group, Department of Chemical Sciences, TIFR, Mumbai 400 005, India
    • Dates

       
  • Bulletin of Materials Science | News

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