Comparison of Gamma Radiation Crosslinking and Chemical Crosslinking on Properties of Methylcellulose Hydrogel

Authors

  • Sarawut Rimdusit Chulalongkorn University
  • Korapat Somsaeng Chulalongkorn University
  • Prartana Kewsuwan Thailand Institute of Nuclear Technology
  • Chanchira Jubsilp Srinakharinwirot University
  • Sunan Tiptipakorn Kasetsart University

DOI:

https://doi.org/10.4186/ej.2012.16.4.15

Keywords:

Gamma radiation, crosslinking, methylcellulose, hydrogel.

Abstract

In this research, characteristics of methylcellulose (MC) films modified with two crosslinking methods were investigated. The first method was the use of a glutaraldehyde (GA) crosslinker to promote hemi-acetal linkages between MC chains. The second one was gamma irradiation to form insoluble MC gel by intermolecular crosslinking. The effects of the MC concentration on the degree of crosslinking, water absorption, gel content, degree of swelling, and thermomechanical properties were determined. The results indicate that the chemically crosslinked MC films show lower polarity than the radiation crosslinked films. The nature of the crosslinkings was also revealed with FTIR spectra. The water-swelled films of chemically crosslinked MC were found to provide homogeneous gel structure whereas the radiation crosslinked MC films were observed to render less uniform crosslinked films.

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Author Biographies

Sarawut Rimdusit

Polymer Engineering Laboratory, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand

Korapat Somsaeng

Polymer Engineering Laboratory, Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand

Prartana Kewsuwan

Thailand Institute of Nuclear Technology (Public Organization), Saimoon, Ongkharak, Nakhonnayok 26120, Thailand

Chanchira Jubsilp

Department of Chemical Engineering, Faculty of Engineering, Srinakharinwirot University, 107 Rangsit-Nakhonnayok Road, Khong 16, Ongkharak, Nakhonnayok 26120, Thailand

Sunan Tiptipakorn

Department of Chemistry, Faculty of Liberal Arts and Science, Kasetsart University, Kamphaeng Saen, Nakorn Pathom 73140, Thailand

Published

Vol 16 No 4, Apr 9, 2012

How to Cite

[1]
S. Rimdusit, K. Somsaeng, P. Kewsuwan, C. Jubsilp, and S. Tiptipakorn, “Comparison of Gamma Radiation Crosslinking and Chemical Crosslinking on Properties of Methylcellulose Hydrogel”, Eng. J., vol. 16, no. 4, pp. 15-28, Apr. 2012.

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