Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8331646 | International Journal of Biological Macromolecules | 2015 | 10 Pages |
Abstract
Guar gum-polyacrylic acid-polyaniline based biodegradable electrically conductive interpenetrating network (IPN) structures were prepared through a two-step aqueous polymerization. Hexamine and ammonium persulfate (APS) were used as a cross linker-initiator system to crosslink the poly(AA) chains on Guar gum (Ggum) backbone. Optimum reaction conditions for maximum percentage swelling (7470.23%) were time (min) = 60; vacuum (mmHg) = 450; pH = 7.0; solvent (mL) = 27.5; [APS] (mol Lâ1) = 0.306 Ã 10â1; [AA] (mol Lâ1) = 0.291 Ã 10â3 and [hexamine] (mol Lâ1) = 0.356 Ã 10â1. The semi-interpenetrating networks (semi-IPNs) were converted into IPNs through impregnation of polyaniline chains under acidic and neutral conditions. Fourier transform infra-red spectroscopy (FTIR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) techniques were used to characterize the semi-IPNs and IPNs. Synthesized semi-IPNs and IPNs were further evaluated for moisture retention in different soils, antibacterial and biodegradation behavior.
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Authors
Balbir S. Kaith, Reena Sharma, Susheel Kalia,