Studies on radiation synthesis of PVA/EDTA hydrogels

Francis, Sanju; Varshney, Lalit

doi:10.1016/j.radphyschem.2005.02.003

Cited by 27 publications

(8 citation statements)

References 12 publications

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“…Irradiation of the hydrated PVA solution (hydrogel) with electrons results in its transition from the liquid state into a more dense gelled state owing to the radiation crosslinking between polymer molecules. As the exposure dose increases, the specific viscosity of hydrogel gradually grows, as was observed, e.g., in work [11], and, accordingly, its fluidity decreases. The fluidity vanishing means that hydrogel has been transformed into the radiationcrosslinked state.…”

Section: Results and Their Discussionsupporting

confidence: 56%

Physical Properties of Radiation-Crosslinked Polyvinyl Alcohol-Polyethylene Glycol Hydrogels from the Viewpoint of Their Application as Medical Dressings

Neimash¹,

Kupianskyi²,

Olkhovyk³

et al. 2017

Ukr. J. Phys.

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The influence of component composition, as well as hydration and electron irradiation conditions, on mechanical, optical, diffusion, and hydrophilic properties of radiation-crosslinked hydrogels prepared on the basis of the polyvinyl alcohol-polyethylene glycol system has been investigated from the viewpoint of their application to the fabrication of medical dressings to treat burns and wounds. A significant impact of the electron irradiation intensity and the temperature of initial solutions on the processes of polymer radiation crosslinking is experimentally revealed and analyzed. The hydrophily of crosslinked hydrogels is demonstrated to depend more strongly on the exposure dose than on the gel composition. The optimal intervals of radiation doses and polymer concentrations, at which the radiation-crosslinked hydrogel satisfies requirements for medical dressing materials are determined. K e y w o r d s: radiation crosslinked hydrogels, polyvinyl alcohol-polyethylene glycol system, medical dressing materials.

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Section: Results and Their Discussionsupporting

confidence: 56%

Physical Properties of Radiation-Crosslinked Polyvinyl Alcohol-Polyethylene Glycol Hydrogels from the Viewpoint of Their Application as Medical Dressings

Neimash¹,

Kupianskyi²,

Olkhovyk³

et al. 2017

Ukr. J. Phys.

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“…The strong band from 1408 cm -1 corresponds to the stretching vibration of CO bond from CaCO 3 and absorption bands from 1116 cm -1 and 915 cm -1 corresponds to Al-O bond [32][33][34][36][37][38][39][40][41].…”

Section: 3mentioning

confidence: 99%

Effect of TiO2 Addition on the Properties of Macro Defect Free Cement-Polymer Composites

Ekincioglu

Özkul

Paţachia

et al. 2013

Restoration of Buildings and Monuments

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Macro-defect free (MDF) cement is a cement-polymer composite with superior flexural strength although produced by mixing cement with small amounts of polymer and water. Special production technique and the crosslinking occurred between cement and polymer are important factors for obtaining such high strengths. However, MDFs lose considerable strength when exposed to water. The objective of this study was to explore the effects of TiO 2 addition on flexural strength and water sensitivity of MDF. In this study, MDF cements were produced by adding up to 4 % TiO 2 by weight of cement. Biaxial flexural test as well as Atomic Force Microscopy (AFM) and Fourier Transform Infrared Spectroscopy (FTIR) tests were conducted in order to investigate the effect of TiO 2 addition. TiO 2 addition improved the water resistance of MDF cements in some batches, especially with 2 % addition possibly due to the C PVA -O-Ti-O-C PVA bond and this cross-linking mechanism together with C PVA -O-Al-O-C PVA bonds cause a more stable polymer network.

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“…EDTA combines with metal ions to form stable chelates, in a 1:1 ratio regardless of the charge on the cation [51]. The pH of the solution can influence the metal speciation, precipitation and the protonation degree.…”

Section: Gel Formationmentioning

confidence: 99%

Structural and morphology comparison between m-LaVO4 and LaVO3 compounds prepared by sol–gel acrylamide polymerization and solid state reaction

Herrera

Chavira

Jiménez-Mier

et al. 2009

Journal of Alloys and Compounds

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Studies on radiation synthesis of PVA/EDTA hydrogels

Cited by 27 publications

References 12 publications

Physical Properties of Radiation-Crosslinked Polyvinyl Alcohol-Polyethylene Glycol Hydrogels from the Viewpoint of Their Application as Medical Dressings

Physical Properties of Radiation-Crosslinked Polyvinyl Alcohol-Polyethylene Glycol Hydrogels from the Viewpoint of Their Application as Medical Dressings

Effect of TiO2 Addition on the Properties of Macro Defect Free Cement-Polymer Composites

Structural and morphology comparison between m-LaVO4 and LaVO3 compounds prepared by sol–gel acrylamide polymerization and solid state reaction

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