alexa Studies on Swelling and Absorption Properties of the Irradiated Polyvinyl Alcohol (PVA)/Kappa-Carrageenan Blend Hydrogels
ISSN: 2090-4568

Journal of Advanced Chemical Engineering
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Research Article

Studies on Swelling and Absorption Properties of the Irradiated Polyvinyl Alcohol (PVA)/Kappa-Carrageenan Blend Hydrogels

MD Tariqul Islam1,2, NC Dafader3, Pinku Poddar1, Noor MD Shahriar Khan1 and AM Sarwaruddin Chowdhury1*

1Department of Applied Chemistry and Chemical Engineering, Faculty of Engineering and Technology, University of Dhaka, Dhaka, Bangladesh

2Department of Chemistry, American International University of Bangladesh, Dhaka, Bangladesh

3Nuclear and Radiation Chemistry Division, Institute of Nuclear Science and Technology, Atomic Energy Research Establishment, Dhaka, Bangladesh

*Corresponding Author:
AM Sarwaruddin Chowdhury
Department of Applied Chemistry and Chemical Engineering
Faculty of Engineering and Technology
University of Dhaka
Dhaka-1000, Bangladesh
Tel: +8802966190075
Fax: +88029667222
E-mail: [email protected]

Received date: April 02, 2016; Accepted date: May 31, 2016; Published date: June 07, 2016

Citation: Islam T, Dafader NC, Poddar P, Khan NS, Chowdhury AMS (2016) Studies on Swelling and Absorption Properties of the γ – Irradiated Polyvinyl Alcohol (PVA)/Kappa-Carrageenan Blend Hydrogels. J Adv Chem Eng 6:153. doi:10.4172/2090-4568.1000153

Copyright: © 2016 Islam T, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

A series of hydrogels were prepared from an aqueous mixture of Poly vinyl alcohol (PVA) and Kappa-carrageenan (KC) and irradiated the mixture at 25 kGy radiation dose with γ-radiation from 60Co γ source at room temperature (25°C). The effects of KC on the properties, such as gel fraction, swelling ratio (e.g., in distilled water, in NaCl solution with different concentration, buffer solution with different pH), water absorption, water desorption, moisture absorption and uptake of metal ion from aqueous solution of the prepared hydrogels were investigated. Incorporation of KC into the PVA obviously influences the properties of hydrogels. It is found that the gel fraction of the prepared hydrogel decreased but swelling ratio increased with increase in concentration of Kappa-carrageenan. Swelling properties in NaCl decreased with increased concentration of NaCl in aqueous solution. Swelling of the blend gel in buffer increased with the increase in pH. Water absorption properties showed that maximum absorption occurred within 24 hrs and then increasing trend of water absorption was insignificant. Water desorption is very fast upto 48 hrs and then attained a plateau value. The maximum moisture absorption occurred within 48 hrs and then the absorption was insignificant. Kappa-carragenan influences to uptake of metal (Cu+2) by PVA / KC blend hydrogel with time.

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