Reactors, Kinetics, and Catalysis

Preparation of tailor-made polystyrene nanocomposite with mixed clay-anchored and free chains via atom transfer radical polymerization

  1. Hossein Roghani-Mamaqani1,
  2. Vahid Haddadi-Asl1,*,
  3. Mohammad Najafi1,
  4. Mehdi Salami-Kalajahi1,
  5. Mohammad Najafi2,
  6. Mehdi Salami-Kalajahi2

Article first published online: 1 OCT 2010

DOI: 10.1002/aic.12395

Issue

AIChE Journal

AIChE Journal

Volume 57, Issue 7, pages 1873–1881, July 2011

Additional Information

How to Cite

Roghani-Mamaqani, H., Haddadi-Asl, V., Najafi, M., Salami-Kalajahi, M., Najafi, M. and Salami-Kalajahi, M. (2011), Preparation of tailor-made polystyrene nanocomposite with mixed clay-anchored and free chains via atom transfer radical polymerization. AIChE J., 57: 1873–1881. doi: 10.1002/aic.12395

Author Information

  1. 1

    Dept. of Polymer Engineering and Color Technology, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran

  2. 2

    Polymer Engineering Division, Research Institute of Petroleum Industry (RIPI), 1485733111, Tehran, Iran

*Dept. of Polymer Engineering and Color Technology, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran

Publication History

  1. Issue published online: 9 JUN 2011
  2. Article first published online: 1 OCT 2010
  3. Accepted manuscript online: 17 AUG 2010 08:15AM EST
  4. Manuscript Revised: 14 JUL 2010
  5. Manuscript Received: 7 MAY 2010

Funded by

  • Iran Petrochemical Research and Technology Company. Grant Number: Grant#0870128706

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Keywords:

  • tailor-made polystyrene;
  • nanocomposite;
  • ATRP

Abstract

Tailor-made polystyrene nanocomposite with mixed free and clay-attached polystyrene chains was synthesized using atom transfer radical polymerization. Vinylbenzyl trimethylammonium chloride having a double bond, which could be incorporated into polystyrene chains by a grafting through process, was used as a nanoclay modifier. Conversion and molecular weight evaluation was carried out using gas chromatography and gel permeation chromatography, respectively. The thermogravimetric analysis results confirmed the elevated thermal stability of the nanocomposites in comparison with the neat polystyrene sample. Additionally, the Tg increases by clay loading was confirmed by differential scanning calorimetry (DSC). The difference in the degradation temperature of C[BOND]Br bond in attached and free polystyrene chains was well revealed in DSC thermograms. Finally, a lower clay loading resulted in an exfoliated structure as proved by X-ray diffraction and transmission electron microscopy results. © 2010 American Institute of Chemical Engineers AIChE J, 2011

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