Skip to main content
SpringerLink
Log in

Structural investigation on gamma-irradiated polyacrylamide hydrogels using small-angle neutron scattering and ultraviolet–visible spectroscopy

  • Published:
Pramana Aims and scope Submit manuscript

    We’re sorry, something doesn't seem to be working properly.

    Please try refreshing the page. If that doesn't work, please contact support so we can address the problem.

Abstract

Small-angle neutron scattering (SANS) and ultraviolet (UV)–visible spectroscopic techniques are used to investigate the microstructural changes in polyacrylamide (PAAm) hydrogels on gamma irradiation. SANS measurements have revealed the presence of inhomogeneities in nanometre scale and reduction of their size with increase in dose. Analysis of SANS data also revealed the increase in the correlation length with increase in dose. The extinction coefficient obtained from the UV–visible spectroscopic studies exhibited λ −β dependence between 500 and 700 nm and is understood to arise from the existence of scatterers (inhomogeneities) in submicron scale in PAAm hydrogels. The increase in value of exponent β with increase in dose indicates that the size of scatterers decrease with increase in dose.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Figure 1
Figure 2
Figure 3

Similar content being viewed by others

References

  1. T Tanaka, Sci. Am. 244, 110 (1981)

    Article  Google Scholar 

  2. M Sivanantham, R Kesavamoorthy, N Sairam, K N Sabharwal and B Raj, J. Pol. Sci.: Part B: Pol. Phys. 46, 710 (2008)

    Article  ADS  Google Scholar 

  3. S Takata, T Norisuye and M Shibayama, Macromolecules 32, 3989 (1999)

    Article  ADS  Google Scholar 

  4. M Y Kizilay and O Okay, Polymer 44, 5239 (2003)

    Article  Google Scholar 

  5. K Lee and S A Asher, J. Am. Chem. Soc. 122, 9534 (2000)

    Article  Google Scholar 

  6. M Sivanantham, B V R Tata and C Anand Babu, Desalination and Water Treatment 38, 8 (2012)

    Article  Google Scholar 

  7. H Kaşgöz, S Özgümüş and M Orbay, Polymer 44, 1785 (2003)

    Article  Google Scholar 

  8. S Abdurrahmanoglu, V Can and O Okay, Polymer 50, 5449 (2009)

    Article  Google Scholar 

  9. B A Baker, R L Murff and V T Milam, Polymer 51, 2207 (2010)

    Article  Google Scholar 

  10. M Sivanantham and B V R Tata, Pramana – J. Phys. 75, 1209 (2010) M Sivanantham and B V R Tata, Pramana – J. Phys. 79, 457 (2012)

  11. L H Lira, K A Martins and SiĆodobude Torresi, Eur. Polym. J. 45, 1232 (2009)

    Article  Google Scholar 

  12. V K Aswal and P S Goyal, Curr. Sci. 79, 947 (2000)

    Google Scholar 

  13. A M Hecht, R Duplessix and E Geissler, Macromolecules 18, 2167 (1985)

    Article  ADS  Google Scholar 

  14. H Furukawa, K Horie, R Nozaki and M Okada, Phys. Rev. E 68, 31406 (2003)

    Article  ADS  Google Scholar 

  15. M Kerker, Scattering of light and other electromagnetic radiation (Acadamic Press, New York, 1969) p. 37

    Google Scholar 

  16. W Heller and E Vassy, J. Chem. Phys. 14, 565 (1946)

    Article  ADS  Google Scholar 

  17. W Heller, H B Klevens and H Oppenheimer, J. Chem. Phys. 14, 566 (1946)

    Article  ADS  Google Scholar 

  18. M A Moharram, S M Rabie and A Y Daghistani, J. Appl. Poly. Sci. 50, 459 (1993)

    Article  Google Scholar 

  19. B S Rao and M R Murthy, J. Polym. Sci. B. Polym. Phys. 25, 1897 (1987)

    Article  ADS  Google Scholar 

Download references

Acknowledgements

Authors acknowledge Dr A K Arora for useful discussions and Dr D Ponraju and Mr Krishnan for providing us the gamma irradiation facility. Authors also thank Dr Baldev Raj and Dr C S Sundar for their encouragement and support.

Author information

Authors and Affiliations

  1. Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603 102, India

    M SIVANANTHAM & B V R TATA

  2. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India

    V K ASWAL

Authors
  1. M SIVANANTHAM
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. B V R TATA
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. V K ASWAL
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to B V R TATA.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

SIVANANTHAM, M., TATA, B.V.R. & ASWAL, V.K. Structural investigation on gamma-irradiated polyacrylamide hydrogels using small-angle neutron scattering and ultraviolet–visible spectroscopy. Pramana - J Phys 86, 609–615 (2016). https://doi.org/10.1007/s12043-015-1037-1

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12043-015-1037-1

Keywords

PACS Nos

Search

Navigation