pH and temperature responsive hydrogels of poly(2-acrylamido-2-methyl-1-propanesulfonic acid-co-methacrylic acid): Synthesis and swelling characteristics

Clara, I.; Lavanya, R.; Natchimuthu, N.

doi:10.1080/10601325.2016.1189282

Cited by 36 publications

(25 citation statements)

References 46 publications

(28 reference statements)

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“…At pH 4 -7, the carboxylic acid component comes into action as well. The majority of the base and acid groups are as NH +3 and COO − or NH 2 and -COOH forms, and therefore ionic interaction of NH +3 and COO − species (ionic crosslinking) or hydrogen bonding between amine and carboxylic acid may lead to a kind of crosslinking followed by decreased swelling, similar behavior was made by Clara et al, [24] for hydrogels of poly (2-acrylamido-2-methyl-1-propanesulfonic acid-co-methacrylic acid). This after all presents KG-g-poly (MAAm) as a pH sensitive hydrogel.…”

Section: Effect Of Crosslinker Concentration On Swelling With Temperamentioning

confidence: 57%

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Synthesis and Characterization of Crosslinked Hydrogel of Konkoli (<i>Maesopsis eminii</i>) Grafted Polymethylacrylamide for a Preliminary Study as an Insulin Delivery System

Ugwu¹,

Barminas²,

Nkafamiya³

et al. 2016

JBM

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Polysaccharide has lately received a significant attention in the formulation of drug delivery system based on the abundant availability, non-toxicity and the various ways its nature, structure and functionality can be modified. In this preliminary work on Konkoli (Maesopsis eminii) galactomannan (KG), it was modified by grafting with methacrylamide (MAAm) using ammonium persulphate (ASP) as initiator. The grafted galactomannan was then crosslinked using N, N-methylenebisacrylamide (N, N-MBAAm) to produce the hydrogel called konkoli grafted polymethylacrylamide (KG-g-poly (MAAm)). FTIR analyses confirm crosslinking and other changes in the functionality of KG-g-poly (MAAm) compared to KG. Swelling properties which are fundamental to the potential properties of any hydrogel as a drug delivery system were studied for KG-g-poly (MAAm) with varied amount of monomer (MAAm), crosslinker and pH with respect to time and temperature. There was a rapid rise followed by a dramatic fall in the swelling capacity with increase in both monomer and crosslinker concentration. The swelling capacity of KG-g-poly (MAAm) also improves as the pH of the medium was changed from acidic to alkaline. Generally, the swelling capacity of KG-g-poly (MAAm) increases with time and temperature of immersion. This result therefore encourages further studies as it presents KG-g-poly (MAAm) potentials in such application as insulin delivery system.

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Section: Effect Of Crosslinker Concentration On Swelling With Temperamentioning

confidence: 57%

“…This observed decrease could be supported by the fact that incorporation of higher amount of monomer lead to self-crosslinking, hence, prevents accessibility of more solvent in the matrix [7] [10] [24].…”

Section: Effect Of Monomer Concentration On Swelling With Temperaturementioning

confidence: 77%

Synthesis and Characterization of Crosslinked Hydrogel of Konkoli (<i>Maesopsis eminii</i>) Grafted Polymethylacrylamide for a Preliminary Study as an Insulin Delivery System

Ugwu¹,

Barminas²,

Nkafamiya³

et al. 2016

JBM

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“…The band between 3000 and 3600 cm −1 is due to the stretching of N-H and O-H [7,9]. In the spectrum of P(AMPS-co-VP), stretching vibration of C=O (amide I band) results from the amide group is seen at 1643 cm −1 [4,7,9]. Both the intensity and band position of amide I band decrease in the spectrum of metal sorbed gel.…”

Section: Characterization Techniquesmentioning

confidence: 99%

“…The removal of heavy metals has become a major problem since they do not have a biodegradable property naturally in the environment [1]. Hydrogels, hydrophilic, cross-linked and three-dimensional networks, have an excellent water absorbing capacity without being soluble [3][4][5]. These smart materials are widely used in the removal of heavy metal ions because of the presence of the functional groups (i.e.…”

Section: Introductionmentioning

confidence: 99%

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Poly(2-acrylamido-2-methyl-1-propane sulfonic acid-co-1-vinyl-2-pyrrolidone) Hydrogel and its use in the Removal of Cd(II), Pb(II) and Cu(II)

Çavuş

Çakal

2017

Acta Phys. Pol. A

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Poly(2-acrylamido-2-methyl-1-propanesulfonic acid-co-1-vinyl-2-pyrrolidone), P(AMPS-co-VP), hydrogel was prepared by free radical cross-linking polymerization method. Prepared hydrogel was used in the competitive removal of Cd(II), Pb(II) and Cu(II) ions from aqueous solution. The characterization of P(AMPS-co-VP) before and after sorption was carried out by the Fourier transform infrared spectroscopy, thermogravimetric analysis and scanning electron microscopy. Atomic absorption spectrometer was used to found the concentration of metal ions in the aqueous solution. The selectivity of P(AMPS-co-VP) was as follows: Cd(II)>Pb(II)>Cu(II). Kinetic study showed that competitive removal of heavy metal ions on poly(AMPS-co-VP) was in accordance with a pseudosecond-order model.

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An efficient pH‐responsive kappa‐carrageenan/tamarind kernel powder hydrogel for the removal of brilliant green and rose bengal from aqueous solution

Vaid

Jindal

2022

J of Applied Polymer Sci

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The objective of this study was to develop an eco‐friendly, cost‐effective, and efficient adsorbent using kappa‐carrageenan (KCG) and tamarind kernel powder (TKP) based cross‐linked 3‐D network hydrogel. The equilibrium swelling capacity of 1429% was achieved by optimization studies. The KCG/TKP hydrogel was characterized by Fourier transform infrared spectroscopy, X‐ray diffraction, field emission scanning electron microscopy, energy dispersive spectroscopy, and thermogravimetric analysis. This hydrogel was employed for the efficient removal of brilliant green (BG) and rose bengal (RB) dye from wastewater. BG and RB were used as a cationic and anionic model dye, respectively. The adsorption capacity of model dyes on KCG/TKP was investigated under different parameters like dye concentration, pH, temperature, and adsorbent amount. With remarkable adsorption capacity, the hydrogel demonstrated a strong dependence on the pH of the medium. The kinetics, adsorption isotherm, thermodynamic studies, and reusability were investigated. The KCG/TKP hydrogel follows pseudo‐second‐order kinetics and the Langmuir isotherm model for the adsorption of both BG and RB model dyes. Spontaneity and exothermic behavior of the adsorption process were revealed by thermodynamic findings. At pH 9, the maximum adsorption capacity of BG was 840.33 mg g−1 while the maximum adsorption capacity of RB was 168.06 mg g−1 at pH 5.

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pH and temperature responsive hydrogels of poly(2-acrylamido-2-methyl-1-propanesulfonic acid-co-methacrylic acid): Synthesis and swelling characteristics

Cited by 36 publications

References 46 publications

Synthesis and Characterization of Crosslinked Hydrogel of Konkoli (<i>Maesopsis eminii</i>) Grafted Polymethylacrylamide for a Preliminary Study as an Insulin Delivery System

Synthesis and Characterization of Crosslinked Hydrogel of Konkoli (<i>Maesopsis eminii</i>) Grafted Polymethylacrylamide for a Preliminary Study as an Insulin Delivery System

Poly(2-acrylamido-2-methyl-1-propane sulfonic acid-co-1-vinyl-2-pyrrolidone) Hydrogel and its use in the Removal of Cd(II), Pb(II) and Cu(II)

An efficient pH‐responsive kappa‐carrageenan/tamarind kernel powder hydrogel for the removal of brilliant green and rose bengal from aqueous solution

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pH and temperature responsive hydrogels of poly(2-acrylamido-2-methyl-1-propanesulfonic acid-co-methacrylic acid): Synthesis and swelling characteristics

Cited by 36 publications

References 46 publications

Synthesis and Characterization of Crosslinked Hydrogel of Konkoli (&lt;i&gt;Maesopsis eminii&lt;/i&gt;) Grafted Polymethylacrylamide for a Preliminary Study as an Insulin Delivery System

Synthesis and Characterization of Crosslinked Hydrogel of Konkoli (&lt;i&gt;Maesopsis eminii&lt;/i&gt;) Grafted Polymethylacrylamide for a Preliminary Study as an Insulin Delivery System

Poly(2-acrylamido-2-methyl-1-propane sulfonic acid-co-1-vinyl-2-pyrrolidone) Hydrogel and its use in the Removal of Cd(II), Pb(II) and Cu(II)

An efficient pH‐responsive kappa‐carrageenan/tamarind kernel powder hydrogel for the removal of brilliant green and rose bengal from aqueous solution

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Product

Resources

About

Synthesis and Characterization of Crosslinked Hydrogel of Konkoli (<i>Maesopsis eminii</i>) Grafted Polymethylacrylamide for a Preliminary Study as an Insulin Delivery System

Synthesis and Characterization of Crosslinked Hydrogel of Konkoli (<i>Maesopsis eminii</i>) Grafted Polymethylacrylamide for a Preliminary Study as an Insulin Delivery System