Water retention and dye adsorption behavior of Gg-cl-poly(acrylic acid-aniline) based conductive hydrogels

Sharma, Kashma; Kaith, Balbir Singh; Kumar, Vijay; Kalia, Susheel; Kumar, Vinod; Swart, H.C.

doi:10.1016/j.geoderma.2014.04.035

Cited by 114 publications

(57 citation statements)

References 56 publications

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“…Several biopolymer-based hydrogels such as Gum gatti [19], Gur gum [14], Kappa carrageenan [20][21][22], chitosan [23], and Guaran [24] were studied as adsorbents for the removal of dyes from aqueous solution. Casey and Wilson [25] reported the adsorption of Methylene blue (MB) dye on Chitosan-PVA composite films and direct relationship between film composition (Chitosan-PVA) with solution pH and the uptake of MB were observed.…”

Section: Introductionmentioning

confidence: 99%

Amphoteric gellan gum-based terpolymer–montmorillonite composite: synthesis, swelling, and dye adsorption studies

Zauro

Vishalakshi

2017

Int J Ind Chem

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A terpolymer gel, Gellan gum-graft-poly(2-acrylamido-2-methyl-1-propanesulfonic acid-co-dimethylaminopropyl methacrylamide) and its composite with the clay, Montmorillonite, was prepared by free-radical polymerization and crosslinking reactions in solution. The terpolymer gel and the clay composite were characterized using FTIR, TGA, SEM, and X-ray diffraction techniques. Swelling studies were carried out in different pH and salt solutions. The gel showed maximum swelling capacity in alkaline medium, while the composite showed higher swelling in neutral medium. The swelling of the gel and the composite followed second kinetics model and water transport is found to be a less Fickian diffusion process. The terpolymer gel and the composite were evaluated for the adsorption of rhodamine B (RhB) and chromotrope 2R (C2R) dyes. Rhodamine B is found to be adsorbed to a higher extent than chromotrope 2R and the adsorption isotherm studies suggested that adsorption of both RhB and C2R on the terpolymer gel was best explained by Langmuir model, while the adsorption on the Composite fitted best into Freundlich model. Similarly, the adsorption kinetics data for both RhB and C2R dyes followed the second-order kinetics.

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Section: Introductionmentioning

confidence: 99%

Amphoteric gellan gum-based terpolymer–montmorillonite composite: synthesis, swelling, and dye adsorption studies

Zauro

Vishalakshi

2017

Int J Ind Chem

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“…For this purpose superabsorbent hydrogels are used to remove toxic and hazardous heavy metal ions and dyes through adsorption mechanism. The adsorption mechanism is facilitated by functional groups in hydrogels including OH, NH2, CONH2, COOH and SO3 groups, which activate and modify the properties of hydrogels [169,170].…”

Section: Hydrogels For Pharmaceutical Applicationsmentioning

confidence: 99%

A Review on Recent Advances in Stabilizing Peptides/Proteins upon Fabrication in Hydrogels from Biodegradable Polymers

Raza

Zafar

Zhu

et al. 2017

Preprint

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Hydrogels evolved as an outstanding carrier material for local and controlled drug delivery that tend to the shortcomings of old conventional dosage forms for small drugs (NSAIDS) and large peptides and proteins. Aqueous swellable and crosslinked polymeric network structure of hydrogels is composed of various natural, synthetic and semisynthetic biodegradable polymers. Hydrogels have remarkable properties of functionality, reversibility, sterilizability, and biocompatibility. All these dynamic properties of hydrogels have increased the interest in their use as a carrier for peptides and proteins to be released slowly in a sustained manner. The therapeutical peptide and proteins are remarkable therapeutic agents in today's world that allows the treatment of severe, chronic and life-threatening diseases, such as diabetes, rheumatoid arthritis, hepatitis in an easy manner. Despite few limitations, hydrogels provide fine tuning of proteins and peptides delivery with enormous impact in clinical medicine. The primary objective of this article is to review current issues concerned with the therapeutics peptides and proteins and impact of remarkable properties of hydrogels on these therapeutic agents. Different routes for pharmaceutical peptides and proteins and superiority over other drugs candidates are presented. The article will also review literature concerning classification of hydrogels on different basis, polymers used, release mechanisms their physical and chemical characteristics and diverse applications.

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“…Modification of natural polymers by grafting has drawn much attention in recent years [1][2][3][4][5]. Guar gum (GG) is derived from the seeds of guar plant Cyanaposis tetragonolobus (Leguminosae); it is a natural nonionic branched polymer with β-D-mannopyranosyl units linked 1-4 with single membered α-D-galactopyranosyl units occurring as side branches.…”

Section: Introductionmentioning

confidence: 99%

Graft Copolymer (Guar Gum-G-Poly 2-Acrylamidoglycolic Acid): Synthesis, Swelling and Flocculation Behaviors

Pandey¹

2017

IJBBMB

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Abstract:The present paper reports the modification of guar gum through the grafting of 2-acrylamidoglycolic acid by free radical polymerization using an efficient potassium peroxydiphosphate/thioacetamide redox system in nitrogen atmosphere. The reaction conditions for maximum grafting have been optimized by varying the reaction variables including the concentration of 2-acrylamidoglycolic acid (5.3×10-2 mol dm ), guar gum (1 g dm −3 ) along with time duration (150 min) and temperature (35°C). Water swelling capacity and flocculation and studies of synthesized graft copolymer have been performed with respect to the parent polymer. The graft copolymer has been characterized by Fourier transform infrared spectroscopy and thermogravimetric analysis.

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Water retention and dye adsorption behavior of Gg-cl-poly(acrylic acid-aniline) based conductive hydrogels

Cited by 114 publications

References 56 publications

Amphoteric gellan gum-based terpolymer–montmorillonite composite: synthesis, swelling, and dye adsorption studies

Amphoteric gellan gum-based terpolymer–montmorillonite composite: synthesis, swelling, and dye adsorption studies

A Review on Recent Advances in Stabilizing Peptides/Proteins upon Fabrication in Hydrogels from Biodegradable Polymers

Graft Copolymer (Guar Gum-G-Poly 2-Acrylamidoglycolic Acid): Synthesis, Swelling and Flocculation Behaviors

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