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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/036/03/0361-0366

    • Keywords

       

      Polystyrene; laponite; nanocomposite; Fourier transform infrared spectroscopy (FTIR); basal spacing; intercalation.

    • Abstract

       

      Polymer–clay nanocomposites of commercial polystyrene (PS) and clay laponite were prepared via solution intercalation technique. Laponite was modified suitably with the well known cationic surfactant cetyltrimethyl ammonium bromide by ion-exchange reaction to render laponite miscible with hydrophobic PS. X-ray diffraction analysis in combination with scanning electron microscopy gives an idea of structural and morphological information of PS–laponite nanocomposite for different varying organo-laponite contents. Intercalation of PS chain occurs into the interlayer spacings of laponite for low organo-laponite concentration in the PS–O-laponite mixture. However, aggregation and agglomeration occur at higher clay concentration. The molecular bond vibrational profile of laponite as well as PS–laponite nanocomposite have been explored by Fourier transform infrared spectroscopy. Thermogravimetric analysis along with differential scanning calorimetry results reveal the enhancement of both thermal stability and glass transition temperature of PS due to the incorporation of clay platelets.

    • Author Affiliations

       

      P K Paul1 S A Hussain2 D Bhattacharjee2 M Pal3

      1. Department of Physics, Jadavpur University, Kolkata 700 032, India
      2. Department of Physics, Tripura University, Agartala 799 022, India
      3. CSIR – Central Mechanical Engineering Research Institute, Durgapur 713 209, India

    • Dates

       
      Published
      June 2013
      Manuscript received
      11 November 2011
      Manuscript revised
      16 August 2012

  • 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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