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chitosan-g-poly acrylamide using method

  • Preparation of a novel chitosan-g

    2016-3-1 · Chitosan-g-poly(acrylamide)/Zn (CPA-Zn) nanocomposite was synthesized using simple method in the presence of microwave radiations. CPA-Zn nanocomposite was characterized by various analytical techniques. CPA-Zn nanocomposite was used for controlled drug delivery of ofloxacin. The maximum drug release was 75% which was …

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  • Preparation of a novel chitosan-g

    Chitosan-g-poly(acrylamide)/Zn (CPA-Zn) nanocomposite was synthesized using simple method in the presence of microwave radiations. CPA-Zn nanocomposite was characterized by various analytical techniques. CPA-Zn nanocomposite was used for controlled drug delivery of ofloxacin. The maximum drug release was 75% which was …

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  • Synthesis of chitosan-g-poly(acrylamide)/ZnS

    2015-3-1 · Chitosan-g-poly(acrylamide)/ZnS (CPAZ) nanocomposite has been synthesized by a simple chemical method in microwave reactor. • Different characterization techniques confirmed the formation of nanocomposite. • The drug release behavior of CPAZ nanocomposites were studied at different pH and different time interval. •

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  • Fabrication of chitosan-g-poly(acrylamide)/CuS ...

    2016-7-1 · A survey of the literature reveals that chitosan-g-poly (acrylamide)/CuS (CPA/CS) nanocomposite, has not been used for controlled delivery systems. In this communication we reported the preparation of chitosan-g-poly (acrylamide)/CuS (CPAC) nanocomposite. The nanocomosite have been characterized using FTIR, TEM, …

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  • Synthesis of magnetic carboxymethyl chitosan- g

    2015-5-29 · Then, the magnetic hydrogel nanocomposites of carboxymethyl chitosan-g-poly(acrylamide) were prepared by incorporation of magnetic laponite RD. The structure of magnetic nanocomposite hydrogels was characterized by scanning electron microscopy (SEM), transmittance electron microscopy (TEM), thermogravimetric …

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  • Chitosan-g-poly(N-isopropylacrylamide) based

    2011-5-16 · We synthesized CS-g-PNIPAm copolymers by free radical copolymerization using APS as an initiator and N,N-methylenebisacrylamide (MBA) as a cross-linking agent and applied them as the matrices of nanogels. The ORI-loaded nanogels were prepared by a self-assembly method and their physicochemical properties were studied.

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  • Preparation and Properties of Chitosan-g

    2019-5-26 · A novel chitosan- g -poly (acrylic acid)/montmorillonite superabsorbent nanocomposite with water absorbency of 160.1 g g -1 in distilled water and 46.6 g g -1 in 0.9 wt % NaCl solution was prepared by in situ intercalative polymerization among chitosan, acrylic acid, and montmorillonite in aqueous solution, using N, N‘ …

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  • Synthesis and characterization of chitosan- g

    2019-11-7 · On the other hand, 1.5 g of CS is dissolved in 40 mL of acetic acid solution (2%) at 60 °C for 15 min under mechanical stirring. In parallel, two equimolar aqueous solutions of the redox initiator system of KPS (0.09 g) and TEMED (0.039 g) (each in ca. 5 mL of distilled water) are prepared.

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  • Chitosan/guargum-g-acrylamide semi IPN

    2014-7-8 · Chitosan and guargum-gt-acrylamide (CH-GG-g-AAm) semi interpenetrating -in oil (w/o) emulsion cross linking method using glutaraldehyde as a crosslinker. 5-fluorouracil (5-FU) is an anticancer drug was successfully -ray diffraction (XRD) and differential scanning calorimetric (DSC)

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  • Preparation of a novel chitosan-g

    Chitosan-g-poly(acrylamide)/Zn (CPA-Zn) nanocomposite was synthesized using simple method in the presence of microwave radiations. CPA-Zn nanocomposite was characterized by various analytical techniques. CPA-Zn nanocomposite was used for controlled drug delivery of ofloxacin. The maximum drug release was 75% which was …

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  • Synthesis of magnetic carboxymethyl chitosan- g

    2015-5-29 · This investigation reports the synthesis of magnetic nanocomposite hydrogels based on carboxymethyl chitosan-g-poly(acrylamide) (CMC-g-PAAm). The magnetic nanoparticles were prepared via in situ co-precipitation of iron salts in the presence of laponite RD nanoclay. Different contents of magnetic nanoclay were utilized to prepare magnetic CMC-g …

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  • Synthesis and characterization of chitosan- g

    2019-11-7 · A novel mineral-based superabsorbent hydrogel composite, poly (2-acrylamido-2-methylpropanesulfonic acid-co-acrylic acid-co-acrylamide)/ground basalt: CS-g-P(AMPS-co-AA-co-AM)/BST/BST, is prepared under microwave irradiation. The structural and morphological characterization of hydrogel is assessed using FTIR …

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  • Preparation and Properties of Chitosan-g

    2019-5-26 · A novel chitosan-g-poly(acrylic acid)/montmorillonite superabsorbent nanocomposite with water absorbency of 160.1 g g-1 in distilled water and 46.6 g g-1 in 0.9 wt % NaCl solution was prepared by in situ intercalative polymerization among chitosan, acrylic acid, and montmorillonite in aqueous solution, using N,N‘ …

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  • Chitosan/guargum-g-acrylamide semi IPN

    2014-7-8 · Chitosan and guargum-gt-acrylamide (CH-GG-g-AAm) semi interpenetrating -in oil (w/o) emulsion cross linking method using glutaraldehyde as a crosslinker. 5-fluorouracil (5-FU) is an anticancer drug was successfully -ray diffraction (XRD) and differential scanning calorimetric (DSC)

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  • Synthesis of Poly(Acrylamide-Graft-Chitosan)

    2019-6-18 · Hydrogel polymers were prepared via graft polymerization of acrylamide (AAm) onto chitosan (CTS) backbone in the presence of methylene bisacrylamide (MBA) as cross-linker and ammonium persulfate (APS) as an initiator. Optimizing the crosslinking graft reaction of AAm onto CTS was studied by varying the concentration …

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  • (PDF) Poly(acrylamide-chitosan) Hydrogels:

    Poly(acrylamide-chitosan) Hydrogels: Interaction with SurfactantsThis article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden.The publisher does not give any warranty …

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  • Interpenetrated Chitosan-Poly(Acrylic Acid-Co

    2013-12-24 · groups in chitosan allow the preparation of chitosan de-rivatives with improved properties under relatively mild conditions [23]. Mahdavinia et al. synthesized poly (ac- rylic acid-co-acrylamide) grafted chitosan, and studied the effect of the buffer solution, ionic strength and cro- ss-linker concentration on the swelling properties of

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  • Chitosan-based hydrogels: From preparation to

    2018-9-15 · More recently, Zhang and co-authors reported a series of chitosan-based self-healing hydrogels, using a benzaldehyde terminated poly (ethylene glycol), to crosslink chitosan or chitosan derivatives by Schiff base (Li, Wang, Wei, & Tao, 2017; Zhang, Tao, Li, & Wei, 2011). Focusing on the tissue engineering, the advantage of using Schiff-base ...

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  • Bacillus pumilus on C- PVA g poly (acrylamide)

    2017-7-18 · Preparation of cross linked Poly (vinyl alcohol) c-PVA using -rays irradiation method (Resin II) Poly vinyl alcohol (PVA) (5.0 g), of molecular weight 72,000 was dissolved in 100 mL of distilled water by stirring and heating at 50°C. The aqueous solution was cooled to room temperature and nitrogen was passed. The solution of …

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  • Environmentally Friendly Chitosan-g-poly(acrylic

    2018-9-15 · This paper investigates on the preparation of a novel eco-friendly composite hydrogel, chitosan-g-poly(acrylic acid-co-acrylamide)/ground basalt and its potential application as a soil ameliorant. Synthesis was undergone using microwave irradiation. N,N′-methylene bisacrylamide MBA was used as a ...

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  • Preparation of

    2013-8-2 · Superabsorbent composites based on chitosan-g-poly(acrylamide) and montorillonite (CTS-g-PAAm/MMT) were synthesized through in situ radical polymerization by grafting of crosslinked acrylamide onto chitosan backbone in presence of MMT at different contents.The formation of the grafted network was confirmed by …

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  • Environmentally Friendly Chitosan-g-poly(acrylic

    2018-6-21 · This paper investigates on the preparation of a novel eco-friendly composite hydrogel, chitosan-g-poly(acrylic acid-co-acrylamide)/ground basalt and its potential application as a soil ameliorant. Synthesis was undergone using microwave irradiation. N,N′-methylene bisacrylamide MBA was used as a cross-linker, whereas potassium …

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  • Fabrication of chitosan-g-poly(acrylamide)/CuS ...

    In present study, we reported the synthesis of chitosan-g-poly(acrylamide)/CuS (CPA/CS) nanocomposite for controlled delivery of ofloxacin. The CPA/CS nanocomposites were characterized by Fourier transmission infrared spectroscopy (FTIR), UV-visible spectroscopy (UV), scanning electron microscopy (SEM), X-ray diffraction (XRD) analysis.

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  • Interpenetrated Chitosan-Poly(Acrylic Acid-Co

    2005-12-6 · A convenient one-step preparation of chitosan-poly(sodium acrylate-co-acrylamide) hydrogel hybrids with super-swelling properties G. R. Mahdavinia, Department of Chemistry, Polymer Research Laboratory, Sharif University of Technology, Tehran, Iran. Search for more papers by this author.

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  • A convenient one‐step preparation of

    2013-12-24 · groups in chitosan allow the preparation of chitosan de-rivatives with improved properties under relatively mild conditions [23]. Mahdavinia et al. synthesized poly (ac- rylic acid-co-acrylamide) grafted chitosan, and studied the effect of the buffer solution, ionic strength and cro- ss-linker concentration on the swelling properties of

    Get Price
  • Interpenetrated Chitosan-Poly(Acrylic Acid-Co

    2012-10-31 · (2012). Fabrication of Interpenetrating Networks of Poly (vinyl alcohol-g-acrylamide) and Chitosan-g-polyacrylamide Chains and Evaluation of Water Sorption, Blood Compatibility and Cytotoxicity Behaviors. Polymer-Plastics Technology and Engineering: Vol. 51, No. 14, pp. 1443-1450.

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  • Fabrication of Interpenetrating Networks of Poly

    Graft copolymerization of acrylamide on chitosan-co-chitin and its application for immobilization of Aspergillus sp. RL2Ct cutinase. Kumari V(1), Kumar S(2), Kaur I(2), Bhalla TC(3). Author information: (1)Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla 171 005, India.

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  • Chitosan-g-poly(acrylamide)/Diatomite

    A series of intelligent superabsorbent polymers composites was prepared through free radical graft-copolymerization of acrylamide (AAm) onto chitosan backbone and crosslinking in absence and in presence of diatomaceous Earth (DE) as inorganic additive at different compositions in aqueous medium using potassium persulfate (KPS) and …

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  • Fabrication of chitosan-g-poly(acrylamide)/CuS ...

    In present study, we reported the synthesis of chitosan-g-poly(acrylamide)/CuS (CPA/CS) nanocomposite for controlled delivery of ofloxacin. The CPA/CS nanocomposites were characterized by Fourier transmission infrared spectroscopy (FTIR), UV-visible spectroscopy (UV), scanning electron microscopy (SEM), X-ray diffraction (XRD) analysis.

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  • Preparation of

    2014-5-5 · Superabsorbent composites based on chitosan‐g‐poly(acrylamide) and montorillonite (CTS‐g‐PAAm/MMT) were synthesized through in situ radical polymerization by grafting of crosslinked acrylamide onto chitosan backbone in presence of MMT at different contents. The formation of the grafted network was confirmed by …

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  • Synthesis and Swelling Properties of Guar Gum-g

    2009-8-17 · Novel guar gum-g-poly(sodium acrylate)/Na-montmorillonite (GG-g-PNaA/MMT) superabsorbent nanocomposites were synthesized by grafted copolymerization among natural guar gum (GG), partially neutralized acrylic acid (NaA) and Na-montmorillonite (MMT) in the aqueous solution using ammonium persulfate as …

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  • Preparation of poly(chitosan-acrylamide)

    Preparation of poly(chitosan-acrylamide) flocculant using gamma radiation for adsorption of Cu(II) and Ni(II) ions | Saleh, Alaaeldine Sh.; Ibrahim, Ahmed G ...

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  • Advances in chitosan-based superabsorbent

    2021-7-6 · Chitosan/Collagen Membranes First, we prepared the collagen powder, which was extracted from bovine tendon using the modified acid-soluble method described by Fernandes et al. [8] and Ramasamy and Shanmugam [9]. Then, the chitosan, collagen, and chitosan/collagen blend membranes were prepared using the method described by

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  • Water Absorption of Chitosan, Collagen, and

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  • Synthesis and characterization of hydroxypropyl ...

    2018-2-3 · In this study, a series of chitosan-g-poly(acrylic acid)/vermiculite (CTS-g-PAA/VMT) superabsorbent composites containing VMT, acid-activated, ion-exchanged, and organic modified VMT were synthesized by free-radical graft polymerization in aqueous solution, using N,N’-methylenebisacrylamide as a crosslinker and ammonium …

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  • Effects of Modified Vermiculite on Water

    In this work, cellulose nanocrystals (CNCs) obtained by the acid hydrolysis of waste bamboo powder were used to synthesize cellulose nanocrystal-g-poly(acrylic acid-co-acrylamide) (CNC-g-P(AA/AM)) aerogels via graft copolymerization followed by freeze-drying. The structure and morphology of the resulting aerogels were characterized by …

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  • Highly Enhanced Adsorption of Lead Ions on

    2006-10-13 · Fabrication of Cellulose Nanocrystal-g-Poly(Acrylic Acid-Co-Acrylamide) Aerogels for Efficient Pb(II) Removal. ... Simple method for preparation of chitosan/poly(acrylic acid) blending hydrogel beads and adsorption of copper(II) from aqueous solutions. ... biosorption using chitosan and chitosan derivatives beads: …

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  • Studies on removal of Cr(VI) and Cu(II) ions using ...

    2019-7-9 · Graft copolymerization of acrylamide on chitosan using ammonium per sulfate as an initiator, was prepared. The effect of temperature, pH of the medium and concentrations of initiator, chitosan and acrylamide on grafting kinetics and efficiency were established. ... molecularly imprinted method, in mild aqueous media of chitosan and acrylamide …

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  • Interpenetrated Chitosan-Poly(Acrylic Acid-Co

    In this research, environmental-responsive nanoparticles of chitosan-graft-poly(N-isopropylacrylamide) copolymers (CS-g-PNIPAAm) were prepared by the self-assembly method. The copolymer was first synthesized through polymerization of NIPAAm monomer in the presence of CS in an aqueous solution using cerium ammonium nitrate as the initiator. Then, the CS-g …

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  • Preparation of environmental-responsive

    2013-8-28 · using Ch-g-PAM and Chitosan, respectively. The longer the settling time, the better the flocculation performance as long as the flocs did not break. 60-90 minutes was the best settling time with optimum dosage of 0.1 g for both flocculants. Grafted chitosan with PAM showed the best result in removing the contaminants compared to single chitosan.

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  • Treatment of Textile Wastewater using Chitosan and ...

    2004-4-1 · through hydrolysis of chitosan-g-poly(VAc) [7]. With Fenton's reagent as a redox initiator, MMA has been graft-copolymerized onto chitosan [8,9]. MMA was also initiated by UV light to be grafted onto chitosan chains [10]. γ-Ray irradiation was also used to graft-copolymerize styrene, VAc and acrylamide (AAm) onto chitosan [11-13].

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  • Modified chitosan, 7 Graft copolymerization of ...

    2007-5-27 · The scope of this study was to prepare and evaluate chitosan derivatives as biosorbents for basic dyes. This was achieved by grafting poly (acrylic acid) and poly (acrylamide) through persulfate induced free radical initiated polymerization processes and covalent cross-linking of the prepared materials. Remacryl Red TGL was used as …

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  • Chitosan Derivatives as Biosorbents for Basic

    2006-5-31 · Abstract Glycol chitosan/poly(vinyl alcohol) interpenetrating polymer network type superporous hydrogels were prepared using a gas foaming/freeze‐drying method. The effect of the molecular weight o...

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  • Swelling and mechanical properties of glycol

    Furthermore, the long poly-acrylamide side c hains w ere benef icial to br idg ing f loccula tion and improved the flocculating performance30. Therefore, the ... modif ica tion of chitosan using ETA is a routine method for improving the dissolubility and c har ge density of c hitosan 16,36.

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  • ASIAN JOURNAL OF CHEMISTRY

    2021-7-6 · Chitosan/Collagen Membranes First, we prepared the collagen powder, which was extracted from bovine tendon using the modified acid-soluble method described by Fernandes et al. [8] and Ramasamy and Shanmugam [9]. Then, the chitosan, collagen, and chitosan/collagen blend membranes were prepared using the method described by

    Get Price
  • Fabrication of Interpenetrating Networks of Poly

    2012-10-31 · (2012). Fabrication of Interpenetrating Networks of Poly (vinyl alcohol-g-acrylamide) and Chitosan-g-polyacrylamide Chains and Evaluation of Water Sorption, Blood Compatibility and Cytotoxicity Behaviors. Polymer-Plastics Technology and Engineering: Vol. 51, No. 14, pp. 1443-1450.

    Get Price
  • Preparation of sugarcane bagasse/poly(acrylic

    2021-7-6 · Abstract. In this work, sugarcane bagasse, being an abundant and renewable resource, was used as a raw material to prepare sugarcane bagasse-g-poly(acrylic acid-co-acrylamide) (SB/P(AA-co-AM)) hydrogels.The hydrogels were prepared by free radical graft copolymerization of SB with AA and AM using N,N-methylene-bis-acrylamide …

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  • Research Progress of Chitosan-Based Biomimetic

    2021-6-27 · glycol chitosan (GC), ciprofloxacin (Cip), PDA nanoparticles (NPs) wound healing [38] hydroxybutyl chitosan (HBC), L-dopamine (L-DOPA), -poly-L-lysine (EPL) wound healing [39] The chitosan-based biomimetic materials and the forms of material prepared. Table 1. Proposed applications of chitosan-based materials based on forms.

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  • Acrylamide | FDA

    2021-6-20 · Acrylamide is a chemical that can form in some foods during high-temperature cooking processes, such as frying, roasting, and baking. Acrylamide in food forms from sugars and an amino acid that ...

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  • Chitosan‐based interpolymeric pH‐responsive

    2006-12-12 · Maria Bercea, Elena-Livia Bibire, Simona Morariu, Mirela Teodorescu, Gabriela Carja, pH influence on rheological and structural properties of chitosan/poly(vinyl alcohol)/layered double hydroxide composites, European Polymer Journal, 10.1016/j.eurpolymj.2015.07.013, 70, (147-156), (2015).

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  • In situ polymerized hyperbranched polymer

    2018-9-3 · In this paper a pH-responsive GG/poly(acrylamide-co-acrylamidoglycolicacid) (PGAGA) hydrogel matrices were successfully synthesized via simple redox polymerization and N,N-methylene-bis-acrylamide used as cross-linker. 5-fluorouracil (5-FU) is an anticancer drug and it has been loaded into the PGAGA hydrogel matrices via the in-situ method …

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  • Synthesis of pH Responsive Hydrogel Matrices from

    Synonyms: Deacetylated chitin, Poly (D-glucosamine) CAS Number: 9012-76-4. Product Number. Product Description. SDS. C3646. from shrimp shells, ≥75% (deacetylated)

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  • Chitosan from shrimp | Sigma-Aldrich

    The acrylamide-sodium acrylate hydrogel was synthesized by free radical polymerization of the method of solution polymerization. Dynamic swelling tests were conducted at 25, 40, and 60°C temperatures, in order to investigate the swelling properties of the synthesized hydrogel. The results have shown that swelling content and swelling rate …

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  • Modeling and Investigation of the Swelling

    Seven bacteria were isolated from spoiled tofu and identified as Bacillus sp. (S08), B. megaterium (S10), B. cereus (S17, S27, S28, S32), and Enterobacter sakazakii (S35). In a paper disc test with 6...

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  • Surface Molecularly Imprinted Polymer of

    2016-2-19 · Synthesis of Molecular imprinting polymer Chitosan-g-poly (methylmethacrylate) (MIP-CS-g-PMMA) ... Bajpai, U. D. N. & Rai, S. Grafting of acrylamide onto guar gum using KMnO4/Oxalic acid redox ...

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  • Ammonium Persulfate-initiated Graft

    2018-5-23 · Similarly, chitosan-g-poly(2-hydroxyethyl acrylate) was APS (Mun et al. 2008). Peroxydisulfate and ascorbic acid were used as redox initiator to graft methyl methacrylate onto chitosan (Singh et al. 2009a). Graft copolymer of chitosan with acrylamide

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  • Fabrication of Curcumin Encapsulated Chitosan

    The present study explores the in situ fabrication of chitosan-poly(vinyl alcohol)-silver nanocomposite films in view of their increasing applications as antimicrobial packaging, wound dressing and antibacterial materials. The reduction of silver ions into silver nanoparticles (AgNPs) is achieved in acidic solution of chitosan (C) and poly (vinyl alcohol) (PVA) using …

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  • Chitin/Chitosan: Versatile Ecological, Industrial,

    2019-3-7 · These materials include chitosan gelatin and chitosan/poly(L-lysine) polyelectrolyte-based scaffolds (Martin-Lopez et al. 2012), chitosan-gold nanocomposites (Lin et al. 2008), chitosan/polylactic acid films (Xie et al. 2008), chitosan/poly(3-hydroxybutyrate-co-3-hydroxyvalerate) nanofibers (Biazar and Heidari Keshel 2014), porous chitosan …

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  • Synthesis and properties of chitosan‐based

    2009-4-20 · Chung‐Yang Chuang, Trong‐Ming Don, Wen‐Yen Chiu, Synthesis of chitosan‐based thermo‐ and pH‐responsive porous nanoparticles by temperature‐dependent self‐assembly method and their application in drug release, Journal of Polymer Science Part A: Polymer Chemistry, 10.1002/pola.23564, 47, 19, …

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  • Clay-Polymer Nanocomposites: Preparations and

    2021-3-11 · Also, methylene blue (MB) dye was removed using chitosan/clay magnetic beads at pH 3–12 with weight ratio of clay to chitosan of more than 0.5. These magnetic NCs provided faster removal of MB within 13 min (50% removal efficiency and 83 mg/g maximum adsorption capacity) [ 67 ].

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  • Chitosan 75-85 deacetylated | Sigma-Aldrich

    Deacetylated chitin, Poly (D-glucosamine) CAS Number: 9012-76-4. Product Number. Product Description. SDS. C3646. from shrimp shells, ≥75% (deacetylated)

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  • Rapid Synthesis of Superabsorbent Smart

    2013-5-9 · Compared to hydrogels synthesized using water bath method, hydrogels synthesized using microwave irradiation have greater porosity (0.05–0.15 × 10 −2 cm 3 /g versus 0.45–2.7 × 10 −2 cm 3 /g) . Furthermore, Kumar et al. reported that the percentage of grafting of xanthan gum with polyacrylamide (PAM) increased from 12.76% to …

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  • Enhancement of Curcumin Bioavailability Using ...

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