Synthesis and properties of a novel pH sensitive poly(N-vinyl-pyrrolidone-co-sulfadiazine) hydrogel

Guo, Jiaxiu; Li, L.; Ti, Yang; Yhu, J.

doi:10.3144/expresspolymlett.2007.26

Cited by 23 publications

(12 citation statements)

References 13 publications

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“…Now, again, when the deswelled hydrogel was placed in a solution of pH 8.0, it swelled again and, thereby, exhibited pulsatile behavior. 44,45 Effect of the ionic strengths of different cations on P s Figure 4(e) shows the swelling data obtained from the chloride salt solutions of various cations with different ionic strengths. From the figure, it is clear that swelling degree decreased with increasing charge of the metal cation (Na þ > Ba 2þ > Fe 3þ > Sn 4þ ).…”

Section: 41mentioning

confidence: 99%

Synthesis, characterization, and swelling behavior evaluation of hydrogels based on Gum ghatti and acrylamide for selective absorption of saline from different petroleum fraction–saline emulsions

Kaith

Jindal

Mittal

et al. 2011

J of Applied Polymer Sci

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In this research article, the synthesis of Gum ghatti and acrylamide based superabsorbents under pressure with N,N 0 -methylene bisacrylamide as a crosslinker and an ascorbic acid-potassium persulfate redox pair as an initiator is reported. To study the impact of the different reaction variables on the water absorbance of the candidate polymer, different reaction parameters, including the reaction time, amount of solvent, pH of the medium, initiator ratio, pressure, and monomer and crosslinker concentrations, were optimized. The candidate polymer was characterized with different techniques, including Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetric analysis, differential thermal analysis, differential thermogravimetry, and X-ray diffraction. The crosslinked product was found to be thermally more stable than the initial backbone. The swelling capacity of the synthesized polymer was investigated in deionized water as a function of time, temperature, and pH of the swelling medium. Moreover, the effects of the ionic strengths of different cations on the swelling capacity of the candidate polymer were studied with different salt solutions. The tendency of absorbency for these hydrogels in salt solutions was found to be in the following order: Na þ > Ba 2þ > Fe 3þ > Sn 4þ for NaCl, BaCl 2 , FeCl 3 , and SnCl 4 salt solutions. Further, the candidate polymer was used for the selective absorption of saline water from different petroleum fraction-saline emulsions. The results showed that the saline absorption capacities of the hydrogels were 667, 610, 646, and 680% in kerosene-saline, diesel-saline, petrol-saline, and petroleum ether-saline emulsions, respectively.

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Section: 41mentioning

confidence: 99%

Synthesis, characterization, and swelling behavior evaluation of hydrogels based on Gum ghatti and acrylamide for selective absorption of saline from different petroleum fraction–saline emulsions

Kaith

Jindal

Mittal

et al. 2011

J of Applied Polymer Sci

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“…This improving is due to chemical reactions between epoxy ring of GPTMS and hydroxyl groups on the cotton surface. (Abidi et al, 2007;Mahltig et al, 2005;Mohamed et al, 2014;Park et al, 1999;Schramm et al, 2004) Stimuli-responsive hydrogels are response hydrogels to external environment such as solvent composition, temperature, light, pH, mechanical force and magnetic or electrical field (Bonina et al, 2004;Guo et al, 2007;Mohamed et al, 2016;Roy et al, 2010;Santos et al, 2010;Suwa et al, 1998). Temperature and pH-responsive hydrogels have been studied more than others.…”

Section: Introductionmentioning

confidence: 99%

Silan/biopolymer microgels for functionalization of cotton fabric: dual responsive pH and temperature and antibacterial properties

Mohamed¹

2017

J App Pharm Sci

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Biopolymer/chitosan/silan composite wassynthesized in four form by conjugating of chitosan with different biopolymer compounds namely, β-Cyclodextrin (β-CD), Arabic gum, Guar gum and Pullulan in presence of 3-glycidoxypropyltrimethoxysilan (GPTMS) as a cross-linker. Characterisation of the prepared composites has been done through some measurements. FT-IR confirmed the chemical reactions between biopolymers, chitosan andGPTMS.TEM and particle size confirm that, the particles are in small size ranged from 20 -200 µm and have porous structure. Textural properties of the prepared composites were studied and provide that, the microgel with pullulan have the best texture properties than other gels, and gel with guar gum have a worst texture properties. Studding the pH effect found that, the microgels particle size was changing with increasing/decreasing the temperature. The flow properties of the chitosan based microgels at different concentrations and different temperatures were also determined. Treated fabrics with chitosan-based microgels were characterized for their morphological structure, antibacterial properties, water uptake for untreated and treated fabrics at different pHs and temperatures and it is confirmed that, the prepared composites impart a hydrophobicity property to the cotton fabrics.

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“…AMPS is one of the important monomer with respect to its hydrolytically stable nature and strong acid functionality [7]. (VP) is a biocompatible monomer with high polymer surface activity [8]. Competitive removal of Cd(II), Pb(II), and Cu(II) was investigated at room temperature using P(AMPSco-VP) and the kinetic mechanism for the sorption of these ions on P(AMPS-co-VP) was determined.…”

Section: Introductionmentioning

confidence: 99%

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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Synthesis and properties of a novel pH sensitive poly(N-vinyl-pyrrolidone-co-sulfadiazine) hydrogel

Cited by 23 publications

References 13 publications

Synthesis, characterization, and swelling behavior evaluation of hydrogels based on Gum ghatti and acrylamide for selective absorption of saline from different petroleum fraction–saline emulsions

Synthesis, characterization, and swelling behavior evaluation of hydrogels based on Gum ghatti and acrylamide for selective absorption of saline from different petroleum fraction–saline emulsions

Silan/biopolymer microgels for functionalization of cotton fabric: dual responsive pH and temperature and antibacterial properties

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)

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