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Graft Copolymerization of Gelatin-g-poly (acrylic Acid-co-acrylamide) and Calculation of Grafting Parameters


Affiliations
1 Young researchers club, Islamic Azad University, Khorramabad Branch, Khorramabad, Iran, Islamic Republic of
2 Department of Chemistry, Science Faculty, Islamic Azad University, Arak Branch, Arak, Iran, Islamic Republic of
 

In this research, we synthesized a novel graft copolymer of gelatin-based via radical polymerization mixtures Acrylic acid (AcA) and Acrylamide (AAm) onto gelatin backbones. The polymerization reaction was carried out in an aqueous medium and in the presence of ammonium persulfate (APS) as an initiator. Evidence of grafting was obtained by comparing FTIR and TGA analysis of CMC and the graft copolymer as well as solubility characteristics of the products. The effect of grafting variables, i.e. concentration of AAm, AcA, APS and Gelatin, and temperature was systematically optimized to achieve a highest percent grafting possible. The overall activation energy for the grafting was also estimated to be 23.30kJ/mole.

Keywords

Gelatin, Graft Copolymerization, Acrylamide, Acrylic Acid, Optimization
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  • Graft Copolymerization of Gelatin-g-poly (acrylic Acid-co-acrylamide) and Calculation of Grafting Parameters

Abstract Views: 564  |  PDF Views: 143

Authors

Fatemeh Soleimani
Young researchers club, Islamic Azad University, Khorramabad Branch, Khorramabad, Iran, Islamic Republic of
Mohammad Sadeghi
Department of Chemistry, Science Faculty, Islamic Azad University, Arak Branch, Arak, Iran, Islamic Republic of
Hadis Shahsavari
Young researchers club, Islamic Azad University, Khorramabad Branch, Khorramabad, Iran, Islamic Republic of

Abstract


In this research, we synthesized a novel graft copolymer of gelatin-based via radical polymerization mixtures Acrylic acid (AcA) and Acrylamide (AAm) onto gelatin backbones. The polymerization reaction was carried out in an aqueous medium and in the presence of ammonium persulfate (APS) as an initiator. Evidence of grafting was obtained by comparing FTIR and TGA analysis of CMC and the graft copolymer as well as solubility characteristics of the products. The effect of grafting variables, i.e. concentration of AAm, AcA, APS and Gelatin, and temperature was systematically optimized to achieve a highest percent grafting possible. The overall activation energy for the grafting was also estimated to be 23.30kJ/mole.

Keywords


Gelatin, Graft Copolymerization, Acrylamide, Acrylic Acid, Optimization

References





DOI: https://doi.org/10.17485/ijst%2F2012%2Fv5i2%2F30338