Characterization, Thermal, and Mechanical Behaviours of Gamma Irradiated Gum Arabic/Poly Vinyl Alcohol Polymer Blends

Ibrahim, Mervat S.; Ibrahim, Sayeda M.; Farag, Serag A.

doi:10.1080/03602550701558132

Cited by 10 publications

(2 citation statements)

References 12 publications

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“…This is due to the increase in the viscosity of reaction medium and thus restricting the movement of the free radical to reach the active sites on the polymeric substrate, so the lower degree of gelation was obtained [16]. This result is in coincidence with those reported by Mervat et al [17] who investigated the increase of the monomer concentration increased the percent of gelation in gum Arabic hydrogels. This result suggested that the presence of HEMA with GA enhanced the gelation process of the copolymers due to the difference in the diffusion coefficient of both polymers.…”

Section: A-effect Of Copolymer Compositionsupporting

confidence: 78%

Preparation And Characterization of Magnetic Nanocomposite Based on Gum Arabic/2-Hydroxyethylmethacrylate Using Gamma Irradiation For Use In Biomedical Application

Nasef

Badawy

Hafez

et al. 2019

Arab Journal of Nuclear Sciences and Applications

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Magnetic nanoparticles were prepared from gum Arabic (GA), 2-hydroxyethylmethacrylate (HEMA) copolymer hydrogel using gamma irradiation. Factors affecting the preparation of (GA/HEMA) copolymer hydrogel and the magnetic nanocomposite of (GA/HEMA)-(Fe 3 O 4), such as irradiation dose, copolymer composition, copolymer concentration and magnetite concentration, were investigated. The swelling property of the prepared hydrogels was studied and the results showed that the swelling percent increases with increasing PH and reaches equilibrium swelling after 6 h. The obtained hydrogel and its magnetic nanocomposites were characterized using Fourier Transform Infrared Spectroscopy (FTIR), thermogravimetric analysis (TGA), Scanning Electron Microscopy (SEM) and Transmission electron microscope (TEM). The presence of Fe 3 O 4 inside the GA/HEMA-Fe 3 O 4 nanocomposites was confirmed by X-ray diffraction (XRD) and energy dispersive X-ray spectroscopy (EDX). The magnetic properties were characterized by Vibrating sample magnetometer (VSM). Finally, the drug loading and in vitro release properties of the (GA/HEMA) copolymer hydrogel and its magnetic nanocomposites were also evaluated using endoxan as an anticancer drug model. The results showed that the optimum endoxan drug release was 97% from (GA/HEMA)-(Fe 3 O 4) nanocomposite during 210 min. It could be concluded that (GA/HEMA)-(Fe 3 O 4) nanocomposite could be used for localized drug delivery for the endoxan drug in a neutral environment of the intestine.

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Section: A-effect Of Copolymer Compositionsupporting

confidence: 78%

Preparation And Characterization of Magnetic Nanocomposite Based on Gum Arabic/2-Hydroxyethylmethacrylate Using Gamma Irradiation For Use In Biomedical Application

Nasef

Badawy

Hafez

et al. 2019

Arab Journal of Nuclear Sciences and Applications

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“…Poly(vinyl alcohol) (PVA) is a polymer of great interest due to its desirable characteristics, specifically for various biomedical and pharmaceutical applications [1][2][3]. Polymer blending has been a most useful method for the improvement or modification of the physicochemical properties of polymer materials [4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Structure and Performance of Poly(vinyl alcohol)/Poly(γ-benzylL-glutamate) Blend Membranes

Zhu

Gao

Wang

et al. 2011

International Journal of Polymeric Materials

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Poly(vinyl alcohol) (PVA)=poly(c-benzyl L-glutamate) (PBLG) blend membranes with different PBLG wt contents were prepared by pervaporation. Structure and surface morphologies of PVA=PBLG blend membranes were investigated by Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). Thermal, mechanical, and chemical properties of PVA=PBLG blend membrane were studied by differential scanning calorimeter (DSC), tensile strength tests, and other physical methods. It was revealed that the introduction of PBLG homopolymer into PVA could exert an outstanding effect on the properties of PVA membrane.

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Characterization of Gamma Irradiated Plasticized Carboxymethyl Cellulose (CMC)/Gum Arabic (GA) Polymer Blends as Absorbents for Dyestuffs

2014

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Polymer blends based on carboxymethylcellulose (CMC) and gum arabic (GA) were prepared by solution casting method. Glycerol was added to the polymer blend solution as a plasticizer with different ratios (2⋅5, 5, 10 and 20%). Then, the plasticized blends were exposed to gamma irradiation at different doses (5, 10 and 20 kGy). The physical properties of the plasticized polymer blends were investigated in terms of gel fraction (%) and swelling percent (%). Thermal properties were investigated by TGA. Also, the structure of the plasticized polymer blends was characterized by Fourier transform infrared spectroscopy. Scanning electron microscope was investigated in order to examine the compatibility between two polymers in the blend and also between polymer blend and plasticizer. The prepared plasticized polymer blends were used as an adsorbent for different dyestuffs. The sorption of dyestuffs by the plasticized polymer blend was determined by a method based on spectroscopic analysis. The results showed that the plasticized polymer blend has a high affinity for basic, acid, reactive and direct dyes. The obtained results showed that using glycerol as plasticizer improved the swellability of polymer blend and also the dye uptake (%).

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Characterization, Thermal, and Mechanical Behaviours of Gamma Irradiated Gum Arabic/Poly Vinyl Alcohol Polymer Blends

Cited by 10 publications

References 12 publications

Preparation And Characterization of Magnetic Nanocomposite Based on Gum Arabic/2-Hydroxyethylmethacrylate Using Gamma Irradiation For Use In Biomedical Application

Preparation And Characterization of Magnetic Nanocomposite Based on Gum Arabic/2-Hydroxyethylmethacrylate Using Gamma Irradiation For Use In Biomedical Application

Structure and Performance of Poly(vinyl alcohol)/Poly(γ-benzylL-glutamate) Blend Membranes

Characterization of Gamma Irradiated Plasticized Carboxymethyl Cellulose (CMC)/Gum Arabic (GA) Polymer Blends as Absorbents for Dyestuffs

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