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Preparation and Properties of Carboxymethyl Cellulose (CMC)/Sodium alginate (SA) Blends Induced by Gamma Irradiation

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Abstract

Carboxymethyl Cellulose (CMC)/Sodium alginate (SA) blends have been prepared by casting solution method. The effect of different irradiation doses (2.5, 5, 10, 15, and 20 kGy) of gamma rays on the physical properties of the CMC/SA blend containing different ratios of SA (20, 30, and 40 %) such as gel fraction (%) and swelling (%) of CMC/SA blends were investigated. It was found that the gel fraction increases with increasing irradiation dose up to 20 kGy while the swelling of CMC/SA blend films tends to increase with increasing SA content and reduced with increasing irradiation doses. Mechanical and thermal properties of the blend films were improved when CMC content increased and with increasing irradiation dose up to 20 kGy. Morphology of the blend was examined by SEM, which indicates compatibility between CMC and SA. The blend rich in SA content possessed good antimicrobial activity against Gram +ve Bacteria (Bacillus subtilis).

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Authors and Affiliations

  1. Radiation Chemistry Department, National Center for Radiation Research and Technology, Nasr City, Egypt

    Sayeda M. Ibrahim & Kariman M. El Salmawi

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  1. Sayeda M. Ibrahim
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  2. Kariman M. El Salmawi
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Correspondence to Sayeda M. Ibrahim.

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Ibrahim, S.M., El Salmawi, K.M. Preparation and Properties of Carboxymethyl Cellulose (CMC)/Sodium alginate (SA) Blends Induced by Gamma Irradiation. J Polym Environ 21, 520–527 (2013). https://doi.org/10.1007/s10924-012-0464-z

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  • DOI: https://doi.org/10.1007/s10924-012-0464-z

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