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Hydrogels, due to their defined porous structures and being filled with aqueous solution, offer the ability to increase the amount of immobilized chemical, biological, or biochemical molecules. With the objective of developing electrically conducting hydrogels, in this work, we used Polyvinyl Alcohol (PVOH), Gelatine (GELTN), Sodium Alginate (SALGT), Chitosan (CHITN), and Carboxy Methyl Cellulose (CMC) like polar biopolymers for hydrogel synthesis using a common crosslinker Glutaraldehyde. Accordingly, we synthesized four sets of hydrogels taking polyvinyl alcohol as common base material and Carboxy Methyl Cellulose, Gelatine, Sodium Alginate, and Chitosan as composite constituents by solution blending with the composition of 25, 50, and 75% by solid polymer basis with respect to PVOH followed by crosslinking with Glutaraldehyde in the form of Full Inter-Penetrating Network (FIPN) Hydrogels. Pure (100%) gels of all five polymers (PVOH, GELTN, SALGT, CHITN, and CMC) were also prepared for comparative study with other composite gels. All hydrogels were characterized by TGA, FTIR, and SEM studies. Sorption study followed by conductivity measurement of the residual fluid and di-electric strength for all the hydrogel samples were studied for comparing conducting characteristics, and, thus, 50% SALGT composition has been identified as the optimum composition having the lowest di-electric strength.

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Synthesis and Characterization of Noble Biopolymeric Conducting Hydrogels

  • 会议论文

  • 发表日期：

    2025年

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  • Ripa Sutar,
  • Avirup Das,
  • Debshilpi Patra,
  • Mrunmayee Parua,
  • Biswajit Mandal,
  • Chandan Datta,
  • Avijit Ghosh,
  • Sunil Baran Kuila

摘要

Hydrogels, due to their defined porous structures and being filled with aqueous solution, offer the ability to increase the amount of immobilized chemical, biological, or biochemical molecules. With the objective of developing electrically conducting hydrogels, in this work, we used Polyvinyl Alcohol (PVOH), Gelatine (GELTN), Sodium Alginate (SALGT), Chitosan (CHITN), and Carboxy Methyl Cellulose (CMC) like polar biopolymers for hydrogel synthesis using a common crosslinker Glutaraldehyde. Accordingly, we synthesized four sets of hydrogels taking polyvinyl alcohol as common base material and Carboxy Methyl Cellulose, Gelatine, Sodium Alginate, and Chitosan as composite constituents by solution blending with the composition of 25, 50, and 75% by solid polymer basis with respect to PVOH followed by crosslinking with Glutaraldehyde in the form of Full Inter-Penetrating Network (FIPN) Hydrogels. Pure (100%) gels of all five polymers (PVOH, GELTN, SALGT, CHITN, and CMC) were also prepared for comparative study with other composite gels. All hydrogels were characterized by TGA, FTIR, and SEM studies. Sorption study followed by conductivity measurement of the residual fluid and di-electric strength for all the hydrogel samples were studied for comparing conducting characteristics, and, thus, 50% SALGT composition has been identified as the optimum composition having the lowest di-electric strength.