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Effect of barium chloride doping on PVA microstructure: positron annihilation study

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Abstract

Microstructural studies on BaCl2 doped polyvinyl alcohol (PVA) polymer films were carried out using density, PAL and dielectric measurements at room temperature. The positron annihilation studies on these samples shows considerable effect on the PVA microstructure due to doping and is understood by invoking the chemical reaction between Ba2+ ions of BaCl2 with OH groups of PVA via intra/inter molecular hydrogen bonding, which forms the complex. This complex formation modifies the free volume content in the amorphous fraction, and results in an enhancement of the polymer crystallinity. At higher dopant concentrations, the number of such complexes increases, and ends up with the formation of dopant aggregates or agglomerates leading to certain phase separation into a polymer-rich phase and a dopant-rich phase. These phase separations are thought to be due to the existence of two or more crystalline phases within the polymer matrix. The XRD study also supports this enhancement of PVA crystallinity due to doping. The electrical studies on the doped PVA reflects that the complex formation due to doping affects the microstructure and hence the dielectric properties including the dc and ac conductivities of the polymer. All of these observed results were analyzed and understood based on the microstructural modification of PVA as a function of dopant concentrations.

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References

  1. H.M. Zidan, J. Appl. Polym. Sci. 88, 1115 (2003)

    Article  Google Scholar 

  2. R.F. Bhajantri, V. Ravindrachary, A. Harisha, V. Crasta, S.P. Nayak, B. Poojary, Polymer 47, 3591 (2006)

    Article  Google Scholar 

  3. P.K. Khare, S.K. Paliwal, R. Kuraria, H.L. Vishwakarma, A. Verma, S.K. Jain, Bull. Mater. Sci. 21, 139 (1998)

    Google Scholar 

  4. A.K. Doolittle, J. Appl. Phys. 22, 1471 (1951)

    Article  Google Scholar 

  5. G. Dlubek, A.S. Gupta, J. Pionteck, R. Krause-Rehberg, H. Kaspar, K.H. Lochhaas, Macromolecules 37, 6606 (2004)

    Article  Google Scholar 

  6. V. Ravindrachary, H.R. Sreepad, A. Chandrashekara, C. Ranganathaiah, S. Gopal, Phys. Rev. B 46, 11471 (1992)

    Article  ADS  Google Scholar 

  7. B. Lobo, M.R. Ranganath, T.S.G. Ravi Chandran, G. Venugopal Rao, V. Ravindrachary, S. Gopal, Phys. Rev. B 59, 13693 (1999)

    Article  ADS  Google Scholar 

  8. Hamdy F.M. Mohamed, Yasuo Ito, Ali. M.A., El-Sayad, Esam E. Abdel-Hady, Polymer 37, 1529 (1996)

  9. J. Shaojin, Z. Zhicheng, F. Yangmei, W. Huiming, Z. Xianfeng, H. Rongdian, Eur. Polym. J. 38, 2433 (2002)

    Article  Google Scholar 

  10. R. Ramani, C. Raganathaiah, Appl. Phys. A 64, 161 (1997)

    Article  ADS  Google Scholar 

  11. Chia-Ming Huang, Eckard W. Hellmuth, Y.C. Jean, J. Phys. Chem. B 102, 2474 (1998)

    Google Scholar 

  12. A. Mazzroua, N. Mostafa, E. Gomaa, M. Mohsen, J. Appl. Polym. Sci. 81, 2095 (2001)

    Article  Google Scholar 

  13. V. Shingh, A.R. Kulkarni, T.R. Rama Mohan, J. Appl. Polym. Sci. 90, 3602 (2003)

    Article  Google Scholar 

  14. B.E. Kilbride, J.N. Coleman, J. Fraysse, P. Fournet, M. Cadek, A. Drury, S. Hutzler, W.J. Roth Blau, J. Appl. Phys. 92, 4024 (2002)

    Article  ADS  Google Scholar 

  15. F.M. Reicha, M. El-Hiti, A.Z. El-Sonabati, M.A. Diab, J. Phys. D Appl. Phys. 24, 369 (1991)

    Article  ADS  Google Scholar 

  16. P. Kirkegaard, N.J. Pedersen, M. Eldrup, in: Report of Riso Natl. Lab, Denmark, M-2740 (1989)

  17. B. Jasinska, A.L. Dawidowicz, S. Pikus, Phys. Chem. Chem. Phys. 5, 3289 (2003)

    Article  Google Scholar 

  18. H. Nakanishi, Y.C. Jean, E.G. Smith, T.C. Sandreczki, J. Polym. Sci. B Polym. Phys. 27, 1419 (1989)

    Article  Google Scholar 

  19. F. Didierjean, J.C. Abbe, G. Duplatre, J. Phys. Chem. 96, 8074 (1992)

    Article  Google Scholar 

  20. G. Wikander, O.E. Mogensen, N.J. Pedersen, Chem. Phys. 77, 159 (1983)

    Article  Google Scholar 

  21. B. Djermouni, H.J. Ache, J. Phys. Chem. 82, 2378 (1978)

    Article  Google Scholar 

  22. K. Hirata, Y. Kobayashi, Y. Ujihira, J. Chem. Soc. Faraday Trans. 93, 139 (1997)

    Article  Google Scholar 

  23. M. Forsyth, P. Meakin, D.R. Mac Farlane, A.J. Hills, J. Phys.: Condens. Matter 7, 7601 (1995)

    Article  ADS  Google Scholar 

  24. H.M. Zidan, J. Polym. Sci. B Polym. Phys. 41, 112 (2003)

    Article  Google Scholar 

  25. D. Bamford, A. Reiche, G. Dlubek, F. Alloin, J.-Y. Sanchez, M.A. Alam, J. Chem. Phys. 118, 9420 (2003)

    Article  ADS  Google Scholar 

  26. J.H. Lind, P.L. Jones, G.W. Pearsall, J. Polym. Sci. A Polym. Chem. 24, 3033 (1986)

    Article  Google Scholar 

  27. V. Ravindrachary, A. Chandrashekara, H.R. Sreepad, V. Sreeramalu, C. Ranganathaiah, S. Gopal, Phys. Lett. A 174, 428 (1993)

    Article  ADS  Google Scholar 

  28. G. Zamfirova, M. Krasteva, M. Misheva, M. Mihaylova, E. Perez, J.M. Perena, Polym. Int. 52, 46 (2003)

    Article  Google Scholar 

  29. A.B. Mansour, J. Appl. Polym. Sci. 91, 3167 (2004)

    Article  Google Scholar 

  30. G C. Psarras, E. Manolakaki, G.M. Tsangaris, Compos. Part A 34, 1187 (2003)

    Article  Google Scholar 

  31. S. Tarafdar, T.R. Middya, A. Banerjee, D. Sanyal, D. Banerjee, K.C. Verma, U. De, Solid State Ionics 152–153, 235 (2002)

    Google Scholar 

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Authors and Affiliations

  1. Department of Physics, Mangalore University, Mangalagangotri, 574199, India

    R.F. Bhajantri, V. Ravindrachary & A. Harisha

  2. Department of Physics, University of Mysore, Manasagangotri, 570006, India

    C. Ranganathaiah & G.N. Kumaraswamy

Authors
  1. R.F. Bhajantri
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  2. V. Ravindrachary
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  3. A. Harisha
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  4. C. Ranganathaiah
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  5. G.N. Kumaraswamy
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Correspondence to V. Ravindrachary.

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PACS

78.70.Bj; 73.61.Ph; 77.84.Jd

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Bhajantri, R., Ravindrachary, V., Harisha, A. et al. Effect of barium chloride doping on PVA microstructure: positron annihilation study. Appl. Phys. A 87, 797–805 (2007). https://doi.org/10.1007/s00339-007-3923-y

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  • DOI: https://doi.org/10.1007/s00339-007-3923-y

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