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Structure and properties of PbS–polyacrylamide nanocomposites

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Abstract

A synthetic procedure for the incorporation of PbS nanoparticles in a polyacrylamide (PAM) matrix is introduced. The method is based on the simultaneous polymerization of the monomer and thermal decomposition of the dithiooxamide–lead complex. X-ray diffraction analysis revealed that the PbS nanoparticles have a sphalerite crystal structure (galena). A transmission electron micrograph showed spherical particles, with an average diameter of about 3 nm, well dispersed in the polymer matrix. Although a sharp edge was not observed, the optical absorption of the PAM–PbS nanocomposite is shifted towards lower wavelengths compared to the bulk PbS. It was also found that, despite a low concentration of the inorganic phase, the nanoparticles significantly affect the thermal properties of the matrix.

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Authors and Affiliations

  1. Department of Chemistry, University of Zululand, Private Bag X1001, Kwa Dlangezwa, 3886, South Africa

    P. Sreekumari Nair, T. Radhakrishnan, N. Revaprasadu & G.A. Kolawole

  2. Department of Chemistry, University of the Free State (Qwaqwa Campus), Private Bag X13, Phuthatidjhaba, 9866, South Africa

    A.S. Luyt & V. Djoković

  3. Institut of Nuclear Sciences ‘Vinča’, P.O. Box 522, 11001, Belgrade, Serbia

    V. Djoković

Authors
  1. P. Sreekumari Nair
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  2. T. Radhakrishnan
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  3. N. Revaprasadu
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  4. G.A. Kolawole
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  5. A.S. Luyt
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  6. V. Djoković
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Correspondence to V. Djoković.

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PACS

82.35.Np; 81.07.-b

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Sreekumari Nair, P., Radhakrishnan, T., Revaprasadu, N. et al. Structure and properties of PbS–polyacrylamide nanocomposites. Appl. Phys. A 81, 835–838 (2005). https://doi.org/10.1007/s00339-005-3283-4

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  • DOI: https://doi.org/10.1007/s00339-005-3283-4

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