title: pH-sensitive Itaconic acid based polymeric hydrogels for dye removal applications.
abstract: A series of Itaconic Acid (IA) based pH-sensitive polymeric hydrogels were synthesized by condensation polymerization of Itaconic Acid (IA) with Ethylene Glycol (EG) in the presence of an acid medium resulted into pre-polymer. Further, pre-polymer were co-polymerized with Acrylic Acid (AA) through free radical polymerization using Potassium persulphate (KPS). The structural and surface morphological characterizations of the synthesized hydrogels were studied using FT-IR spectroscopy and Scanning Electron Microscope (SEM) respectively. The swelling and swelling equilibrium were performed at varies pH (4.0-10.0). Further, the effects of IA, EG and AA on swelling properties have also been investigated. Thermal stability of synthesized hydrogels have been investigated by TGA, DTA and DSC. The synthesized hydrogels have shown good ability to uptake a Cationic dye. The Methylene blue has been chosen as a model cationic dye. The results of dye removal using IA hydrogels found to have excellent dye removal capacity. Such kind of IA based hydrogels may be recommended for eco-friendly environmental application. viz., removal of dyes and metal ions and sewage water treatment, purification of water etc.
authors.affiliation: Research and Development Centre, Bharathiar University, Coimbatore 641046, India. Electronic address: msakthi81986@gmail.com.
authors.forename: M
authors.initials: M
authors.lastname: Sakthivel
authors.affiliation: Department of Chemistry, C. Abdul Hakeem College of Engineering and Technology, Melvisharam 632509, India. Electronic address: loyolafrank@yahoo.co.in.
authors.forename: D S
authors.initials: DS
authors.lastname: Franklin
authors.affiliation: PG & Research Department of Chemistry, Muthurangam Government Arts College, Vellore 632002, Tamil Nadu, India. Electronic address: sai_gugan@yahoo.com.
authors.forename: S
authors.initials: S
authors.lastname: Guhanathan
mesh_terms: D000179:Acrylates / Q000737:chemistry; D002412:Cations; D004396:Coloring Agents / Q000737:chemistry*; D020100:Hydrogels / Q000138:chemical synthesis / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D008751:Methylene Blue / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D017680:Potassium Compounds / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013386:Succinates / Q000737:chemistry*; D013431:Sulfates / Q000737:chemistry; D013696:Temperature; D014874:Water Pollutants, Chemical / Q000737:chemistry; D018508:Water Purification / Q000379:methods*
chemical_list: D000179:Acrylates; D002412:Cations; D004396:Coloring Agents; D020100:Hydrogels; D011108:Polymers; D017680:Potassium Compounds; D013386:Succinates; D013431:Sulfates; D014874:Water Pollutants, Chemical; C009007:potassium persulfate; C036658:acrylic acid; C005229:itaconic acid; D008751:Methylene Blue
keywords: Ethylene glycol; Hydrogels; Itaconic acid; Swelling equilibrium; Thermal stability