Microwave assisted synthesis and characterization of sodium alginate-graft-poly(N,N′-dimethylacrylamide)

Akın, Alper; Işıklan, Nuran

doi:10.1016/j.ijbiomac.2015.10.050

Cited by 56 publications

(29 citation statements)

References 45 publications

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“…As displayed in Figure , the grafting percentage and efficiency initially increased with the increase in temperature from 20 to 40 °C and then sharply decreased. The increment in the grafting percentage can be explained by three factors; first, increase in the copolymerization rate between DEAAm and alginate radicals, second, increment in the mobility of initiator and monomeric radicals and third, the generation of higher initiator radicals at higher temperature . The best grafting percentage and efficiency were obtained to be 59% and 48% at 40 °C, respectively.…”

Section: Resultsmentioning

confidence: 95%

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Temperature‐responsive alginate‐g‐poly(N,N‐diethylacrylamide) copolymer: Synthesis, characterization, and swelling behavior

Işıklan

Altınışık

2018

J of Applied Polymer Sci

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Temperature‐responsive polymers have recently gained importance due to their applications in drug delivery. Herein, temperature‐responsive graft copolymer (Alg‐g‐PDEAAm) of alginate and N,N‐diethylacrylamide was synthesized by microwave‐assisted copolymerization using potassium persulfate/N,N,N′,N′‐tetramethylethylenediamine initiator system. The reaction conditions for the best grafting (331%) have been optimized by changing microwave irradiation time, temperature, N,N‐diethylacrylamide, and alginate concentrations. The spectroscopic characteristic, thermal properties, and surface morphology of the copolymers were investigated by FTIR, 1H‐NMR, DSC/TGA, XRD, gel permeation chromatography, and SEM. Furthermore, low critical solution temperatures of Alg‐g‐PDEAAm copolymers were detected by UV spectroscopy. Swelling ratio of graft microspheres was carried out at 25, 32, and 37 °C, and microspheres were found exhibiting temperature‐responsive property. Cytotoxicity test indicated the Alg‐g‐PDEAAm copolymer and its microsphere were biocompatible. Therefore, based on the results the synthesized temperature‐responsive copolymer could be considered as a promising biomaterial. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46688.

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Section: Resultsmentioning

confidence: 95%

“…L929 fibroblast cell line was used for the in vitro cytotoxicity testing. Detail procedure was given in the previous study …”

Section: Methodsmentioning

confidence: 99%

Temperature‐responsive alginate‐g‐poly(N,N‐diethylacrylamide) copolymer: Synthesis, characterization, and swelling behavior

Işıklan

Altınışık

2018

J of Applied Polymer Sci

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“…PMMA‐ g ‐sodium alginate (0.375 ppm) effectively flocculated coal fine particles (1 wt%) from coal washery effluent treatment. Similarly, N , N ′‐dimethylacrylamide was grafted onto sodium alginate using microwave radiation and azobisizobutyronitrile (AIBN) initiator . It is important to note that the concentrations of monomer, initiator, and sodium alginate, microwave power and polymerization temperature significantly affect the grafting efficiency and the properties of the resulting grafted material.…”

Section: Recent Advances In the Development Of Water Soluble Flocculantsmentioning

confidence: 99%

Water Soluble Polymer Flocculants: Synthesis, Characterization, and Performance Assessment

Vajihinejad

Gumfekar

Bazoubandi

et al. 2018

Macro Materials & Eng

137

108

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Water soluble polymer flocculants are important constituents of solid–liquid separation units for the treatment of a variety of process‐affected effluents. The systematic development of a flocculant relies on a good understanding of flocculation process, polymer synthesis, polymer characterization, and, not the least, flocculation performance assessment as desired for a particular treatment process, all of which are essential to establish meaningful relationships between flocculant microstructure and flocculation efficiency. The aim of this article is to communicate the bigger picture of this research area to the readers. The recent advances in the application of bio/natural, synthetic, and stimuli‐responsive flocculants are reviewed. Then, the basic polymer reaction engineering tools to control the microstructure of flocculants are provided and the techniques for the quantification of flocculant microstructure are concisely discussed. This is followed by a review of the methods used for the characterization of particle‐polymer force measurement, and flocculation/dewatering assessment with attention to the characterization of aggregate structures.

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“…20 For SEM imaging, 1 mL of L929 fibroblast cells with 3 3 10 5 cells/mL was seeded on the PVA-g-PDEAAm membrane (28% grafting). The in vitro cytotoxicity of the PVA, PDEAAm, PVA-g-PDEAAm copolymer (28% grafting percent), and PVA-g-PDEAAm membrane was explored using MTT (3,[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide) analysis according to the ISO 10993-5 standard.…”

Section: Preparation Of Graft Membranementioning

confidence: 99%

“…The MTT procedure was described in detail in our previous study. 20 For SEM imaging, 1 mL of L929 fibroblast cells with 3 3 10 5 cells/mL was seeded on the PVA-g-PDEAAm membrane (28% grafting). The membrane was then incubated at 37 8C with 5% CO 2 atmosphere.…”

Section: Preparation Of Graft Membranementioning

confidence: 99%

Thermoresponsive and biocompatible poly(vinyl alcohol)‐graft‐poly(N,N‐diethylacrylamide) copolymer: Microwave‐assisted synthesis, characterization, and swelling behavior

Işıklan

Kazan

2017

J of Applied Polymer Sci

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Novel thermoresponsive poly(vinyl alcohol)-graft-poly(N,N-diethylacrylamide) (PVA-g-PDEAAm) copolymers were prepared by microwave-assisted graft copolymerization using a potassium persulfate/N,N,N 0 ,N 0 -tetramethylethylenediamine (KPS/ TEMED) initiator system. The structures of PVA-g-PDEAAm copolymers were characterized by 1 H-NMR, Fourier transform infrared spectroscopy, differential scanning calorimetry/thermogravimetric analysis, gel permeation chromatography, X-ray diffraction, and scanning electron microscopy. The effects of various process parameters on grafting were systematically studied: microwave power, KPS, monomer and PVA concentrations, and ultraviolet irradiation. Under optimal conditions, the maximum grafting percent and graft efficiency were 101% and 93%, respectively. Furthermore, a lower critical temperature of copolymers was measured in the range 29-31 8C by ultraviolet spectroscopy. The swelling behavior of graft membranes was carried out at various temperatures, and the results showed that the swelling behavior of membranes was dependent on the temperature. In vitro cell culture studies using L929 fibroblast cells confirmed cell compatibility with the PVA-g-PDEAAm copolymer and its membrane, making them an attractive candidate for drug delivery systems.

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Microwave assisted synthesis and characterization of sodium alginate-graft-poly(N,N′-dimethylacrylamide)

Cited by 56 publications

References 45 publications

Temperature‐responsive alginate‐g‐poly(N,N‐diethylacrylamide) copolymer: Synthesis, characterization, and swelling behavior

Temperature‐responsive alginate‐g‐poly(N,N‐diethylacrylamide) copolymer: Synthesis, characterization, and swelling behavior

Water Soluble Polymer Flocculants: Synthesis, Characterization, and Performance Assessment

Thermoresponsive and biocompatible poly(vinyl alcohol)‐graft‐poly(N,N‐diethylacrylamide) copolymer: Microwave‐assisted synthesis, characterization, and swelling behavior

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