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      Permanent link:
      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

       
      Published
      July 2011
      Manuscript received
      26 October 2009
      Manuscript revised
      5 February 2010

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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