Taguchi optimized synthesis of collagen-g-poly(acrylic acid)/kaolin composite superabsorbent hydrogel

Pourjavadi, Ali; Ayyari, M.; Amini‐Fazl, Mohammad Sadegh

doi:10.1016/j.eurpolymj.2008.01.032

Cited by 132 publications

(64 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, one of the most important properties, which should be considered, is gel microstructure morphologies. This porous microstructure brings about an increased surface area and capillary effect [36,37]. The microstructure morphologies of prepared gels were observed using SEM.…”

Section: Scanning Electron Microscopymentioning

confidence: 99%

Dextran-graft-poly(hydroxyethyl methacrylate) gels: a new biosorbent for fluoride removal of water

Ahmari

Mousavi

Amini-Fazl

et al. 2012

Designed Monomers and Polymers

View full text Add to dashboard Cite

Synthesis of dextran-graft-poly(hydroxyethyl methacrylate) gels as a new fluoride biosorbent was considered in this work. For this propose, the Taguchi experimental design method was used for optimizing the synthetic conditions of the gels to reach high level of fluoride absorbency. The effects of three main parameters including concentrations of monomer (hydroxyethyl methacrylate), crosslinking agent (ethylene glycol dimethacrylate), and initiator (ammonium persulfate) on the final properties of the prepared gels were investigated. The proposed mechanism for grafting and chemically crosslinking reactions was proved with equilibrium water absorption, Fourier-transformed infrared, scanning electron microscopy, and thermogravimetric analysis. Under the optimized synthetic conditions, the maximum fluoride adsorption capacity in distilled water was found to be 8312 (mg fluoride/kg dried gel). As well, the loading of prepared gels with silver nanoparticles has been considered to achieve antibacterial activity. The silver nanoparticles loaded gels showed strong antibacterial activity against Gram-negative Escherichia coli bacterium. Therefore, these new gels can be considered as a potential candidate to develop an efficient antibacterial fluoride biosorbent for water treatment applications.

show abstract

Section: Scanning Electron Microscopymentioning

confidence: 99%

Dextran-graft-poly(hydroxyethyl methacrylate) gels: a new biosorbent for fluoride removal of water

Ahmari

Mousavi

Amini-Fazl

et al. 2012

Designed Monomers and Polymers

View full text Add to dashboard Cite

show abstract

“…Fortunately, there is increasing interest in using renewable natural resources to generate these polymers. Substances such as starch [4], chitosan [5], cellulose [6], carrageenan [7], pectin [8], protein [9], collagen [10], sugarcane bagasse [11], and lignin (and/or lignosulfonate) [12] are currently employed in the preparation of SAPs.…”

Section: Introductionmentioning

confidence: 99%

Optimized synthesis and swelling properties of a pH-sensitive semi-IPN superabsorbent polymer based on sodium alginate-g-poly(acrylic acid-co-acrylamide) and polyvinylpyrrolidone and obtained via microwave irradiation

Tally

Atassi

2015

J Polym Res

View full text Add to dashboard Cite

A pH-sensitive superabsorbent hydrogel composite, sodium alginate-g-poly(acrylic acid-co-acrylamide) in the presence of polyvinylpyrrolidone (PVP), was prepared using the semi-interpenetrating polymer network (semi-IPN) technique and microwave irradiation. Potassium peroxodisulfate (KPS) was used as an initiator, N,N,N′,N′-tetramethylene diamine (TEMED) as a reaction accelerator, and N,N′-methylene bisacrylamide (MBA) as a crosslinker. The Taguchi method was employed to optimize the synthetic conditions for the hydrogel based on water absorbency. The Taguchi L 9 (3 4 ) orthogonal array was selected for the experimental design. The mass concentrations of MBA (C MBA ), KPS (C KPS ), and sodium alginate (C NaAlg ) as well as the molar ratio of acrylamide to acrylic acid (R AM/AA ) were chosen as the four factors in the design. Based on an analysis of variance in the test results, the optimal conditions were found to be 0.18 g/L of MBA, 0.60 g/L of KPS, 7.73 g/L of NaAlg, and R AM/AA = 1:1. The maximum water absorbency of the optimized hydrogel was found to be 1551 g/g. The relative thermal stability of the hydrogel in comparison with sodium alginate was proven using thermogravimetric analysis. The prepared hydrogel was characterized by FTIR and scanning electron microscopy (SEM). The influences of environmental parameters such as the pH and the ionic strength of the solution on the water absorbency were also investigated.

show abstract

“…Because of their excellent characteristics, superabsorbents have been widely used in many areas, such as disposable diapers, feminine napkins [1], humidity controller in packaging [2], protect Optical Fiber Cables from water penetration [3], as agriculture support to maintain water in plants neighborhood [4] and because of their weak irritation potential [5] they are used in hygienic and medical products such as wound dressing [6]. These polymeric hydrogels are promising materials in the field of hydrometallurgical applications as well as water purification because of their chemical stability [7].…”

Section: Introductionmentioning

confidence: 99%

Study of Agar Proportions Effect on a Gamma Ray Synthesized Hydrogel

Ammar¹,

Saied²,

Mejri³

et al. 2016

JMSE-A

View full text Add to dashboard Cite

Abstract:In this study, we aimed to identify the effect of agar proportion on the synthesized superabsorbent properties based on PVP (Polyvinyl pyrrolidone), poly (ethylene glycol) (PEG) and agar. In a first stage, the study of swelling and deswelling behavior of synthesized hydrogel was done. It was proved that agar acts as a crosslinking inhibitor since it competes with free radicals. The pH versus swelling time was studied. The polymer was characterized by Fourier transform infrared spectra analysis and X-ray Diffraction. The removal of Cu(II) from aqueous solution by the prepared PVP/PEG/agar hydrogel was studied. Also, the influences of pH and contact time were investigated throughout adsorption experiments. The maximum retention capacity was found to be 36.5 mg g -1 for the hydrogel containing 1% of agar. The kinetic parameters were calculated from the experimental data and it was shown that they fit well with pseudo-second-order kinetic model.

show abstract

Taguchi optimized synthesis of collagen-g-poly(acrylic acid)/kaolin composite superabsorbent hydrogel

Cited by 132 publications

References 14 publications

Dextran-graft-poly(hydroxyethyl methacrylate) gels: a new biosorbent for fluoride removal of water

Dextran-graft-poly(hydroxyethyl methacrylate) gels: a new biosorbent for fluoride removal of water

Optimized synthesis and swelling properties of a pH-sensitive semi-IPN superabsorbent polymer based on sodium alginate-g-poly(acrylic acid-co-acrylamide) and polyvinylpyrrolidone and obtained via microwave irradiation

Study of Agar Proportions Effect on a Gamma Ray Synthesized Hydrogel

Contact Info

Product

Resources

About