title: Guar gum based biodegradable, antibacterial and electrically conductive hydrogels.
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 L(-1)) = 0.306 × 10(-1); [AA] (mol L(-1)) = 0.291 × 10(-3) and [hexamine] (mol L(-1))=0.356 × 10(-1). 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.
authors: Department of Chemistry, Dr. B.R. Ambedkar National Institute of Technology, Jalandhar 144 011, Punjab India.
authors: Balbir S
authors: BS
authors: Kaith
authors: School of Chemistry, Shoolini University, Solan 173 212, HP, India.
authors: Reena
authors: R
authors: Sharma
authors: Department of Chemistry, Bahra University, Shimla Hills, Waknaghat 173 234, HP, India. Electronic address: susheel.kalia@gmail.com.
authors: Susheel
authors: S
authors: Kalia
mesh_terms: D000179:Acrylates / Q000737:chemistry; D000814:Aniline Compounds / Q000494:pharmacology; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001672:Biocompatible Materials / Q000494:pharmacology*; D001673:Biodegradation, Environmental; D003432:Cross-Linking Reagents / Q000494:pharmacology; D004553:Electric Conductivity; D004926:Escherichia coli / Q000187:drug effects / Q000254:growth & development; D005685:Galactans / Q000737:chemistry / Q000494:pharmacology*; D006813:Humidity; D020100:Hydrogels / Q000494:pharmacology*; D006863:Hydrogen-Ion Concentration; D008351:Mannans / Q000737:chemistry / Q000494:pharmacology*; D008826:Microbial Sensitivity Tests; D008855:Microscopy, Electron, Scanning; D053149:Plant Gums / Q000737:chemistry / Q000494:pharmacology*; D012987:Soil / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013211:Staphylococcus aureus / Q000187:drug effects; D013696:Temperature; D013818:Thermogravimetry; D013997:Time Factors; D014618:Vacuum
chemical_list: D000179:Acrylates; D000814:Aniline Compounds; D000900:Anti-Bacterial Agents; D001672:Biocompatible Materials; D003432:Cross-Linking Reagents; D005685:Galactans; D020100:Hydrogels; D008351:Mannans; D053149:Plant Gums; D012987:Soil; C007894:guar gum; C036658:acrylic acid; C023650:aniline
keywords: Antibacterial; Biodegradation; Electrically conductivity; Interpenetrating network; Swelling