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application of polyacrylamide hydrogel preparation

  • Hydrogel: Preparation, characterization, and

    2015-3-1 · Preparation and process optimization of hydrogel by solution polymerization technique. Free-radical initiated polymerization of acrylic acid (AA) and its salts, with a cross-linker, is frequently used for hydrogel preparation. The carboxylic acid groups of the product are partially neutralized before or after the polymerization step.

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  • Preparation of modified polyacrylamide hydrogels

    2001-8-1 · Modified polyacrylamide hydrogels were prepared by transamidation and Hofmann reactions using different amine compounds. Products were characterized by their amine value (AV), equilibrium degree of swelling (EDS) and FT-IR spectroscopy.

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  • Application of polyacrylamide hydrogel in

    2010-2-21 · OBJECTIVE: To review our experience with the application of polyacylamide hydrogel (PaH) as an injectable filling material in augmentation mammoplasty. METHODS: From Oct. 1997 to Mar. 2002, PaH was used in 800 patients with breasts of insufficient size to be commensurate with the body.

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  • Preparation of Hydrogel Substrates with - iSpyBio

    2015-2-2 · simple method to create matrix substrates from polyacrylamide (PA) with a tunable elas-ticity. Besides producing statically compliant hydrogels, this technique can be adapted to produce hydrogels with a gradient of elasticity (Alternate Protocol). PA offers several im-portant advantages for its application as a biomaterial for cell culture.

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  • Preparation and Properties of Polyacrylamide Titanium ...

    2019-12-13 · The scheme of hydrogel synthesis in this experiment is as fol-lows: (Scheme 1) Table 1: The formulation for hydrogel synthesis. Sample TiO 2 (mg) AAm (g) MBA (g) TEMED (mL) PAAm - 3 0.06 0.075 PAAm/0.3% TiO 2 9 3 0.06 0.075 PAAm/0.6% TiO 2 18 3 0.06 0.075 PAAm/1% TiO 2 30 3 0.06 0.075 1.2 g of PEG and 0.72 g of K 2 S 2 O 8 were dissolved in 60 mL and

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  • Facile preparation of

    2020-4-15 · Fig. 1(a) shows the FTIR spectra of CS, AAm, and AAm/CS hydrogel, respectively.From Fig. 1(a), it can be seen that the characteristic peaks of CS are usually located at 3430 cm −1 (the stretching vibration of O H and N H bonds), 2917 and 2875 cm −1 (the stretching vibration of C–H), and 1667 cm −1 (the stretching vibration of C O in the amide group), 1600 cm −1 (bending vibration of ...

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  • Hydrogel: Preparation, characterization, and

    2015-3-15 · Hydrogel products constitute a group of polymeric materials, the hydrophilic structure of which renders them capable of holding large amounts of water in their three-dimensional networks. Extensive employment of these products in a number of industrial and environmental areas of application is considered to be of prime importance.

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  • Effect of patterned polyacrylamide hydrogel on

    We recently demonstrated that patterned Parylene C films could be effectively used as a mask for directly copolymerizing proteins on polyacrylamide hydrogel (PAm). In this work, we have proved the ...

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  • Hydrogels: Methods of Preparation,

    2020-5-22 · Particular emphasis is placed on discussing the advantages of MOF-based hydrogels in applications such as sensors, catalysts, water treatment, wound dressings, drug carriers etc. MOF-based hydrogels can provide valuable guidance for the investigation of MOFs towards practical applications with processability, stability, and easy handling.

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  • Preparation and Properties of

    Abstract: The preparation and application of functional hydrogels based on natural polysaccharides have always been a hot research topic. In this study, using acrylamide (AM) monomer, N, N'-methylene bisacrylamide (MBA) as cross-linking agent, potassium persulfate (K 2 S 2 O 8) as initiator, in the presence of natural polysaccharide sodium alginate (SA), the PAM/SA hydrogel was prepared by ...

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  • Preparation of homogeneous polyacrylamide hydrogels

    2007-7-6 · 2.2. Hydrogel preparation The hydrogels were prepared in aqueous solu-tions at 21 C in the presence of 3.51 mM APS initiator and 0.25 v/v% TEMED accelerator. The crosslinker ratio, that is the mole ratio of the cross-linker BAAm to the monomers AAm + DMA or AAm + NIPA was fixed at 1/83. The initial concen-

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  • POLYACRYLAMIDE BASED HYDROGELS: SYNTHESIS ...

    Hydrogels are polymeric networks those imbibe large quantity of water without dissolving themselves. Hydrogels contain water solubility groups such as –OH, -COOH, -NH2, -CONH2, andSO3H. Polyacrylamide hydrogel is widely used in ophthalmic operations, drug treatment, food packaging products, and water purification.This review describes the various methods of synthesis of polyacrylamide …

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  • The preparation and electrical conductivity of ...

    2008-1-25 · Polyacrylamide/graphite superabsorbent composite was synthesized by free radical polymerization of acrylamide monomer using N ,N ′‐methylene‐bis‐acrylamide as crosslinker, potassium persulfate as initiator, and graphite as functional filler.On the basis of the superabsorbent composite, a hydrogel with a conductivity of 0.86 mS cm −1 was obtained.

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  • The New Approach to the Preparation of

    The new initiator of the polymerization of acrylamide, leading to the formation of crosslinked polyacrylamide, was discovered. The structure of the synthesized polyacrylamide was characterized by XRD, 1H NMR, and 13C NMR spectroscopy. It was shown that 1,3-dimethylimidazolium (phosphonooxy-)oligosulphanide is able to initiate radical polymerization under drying aqueous solutions of acrylamide ...

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  • A novel carbon dot/polyacrylamide composite

    First published on 29th June 2021. A carbon dot/polyacrylamide (CDs/PAM) composite hydrogel film with stable fluorescence performance was fabricated by merging a hydrogel film and carbon dots (CDs) with blue fluorescence, which were prepared by hydrothermal synthesis using anhydrous citric acid and acrylamide as carbon sources.

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  • Polyacrylamide Gel Electrophoresis (PAGE ...

    2017-11-16 · Synthesis, characterization and evaluation of polyacrylamide graft starch/clay nanocomposite hydrogel system for enhanced oil recovery Rituraj Singh1 • Vikas Mahto1 Received: 6 August 2016/Published online: 7 September 2017 The Author(s) 2017. This article is an open access publication Abstract In this paper the suitability of a graft polymer

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  • Synthesis, characterization and evaluation of ...

    2015-10-3 · Ease of application can also be problematic; although some hydrogels are sufficiently deformable to be injectable, many are not, necessitating surgical implantation [3]. Above problems restrict the practical use of hydrogel-based drug delivery systems in the clinical practice [3]. Classification of hydrogel products

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  • Hydrogels: Introduction, Preparation, Characterization

    2020-6-20 · Preparation and Application of MOF-Based Hydrogel Materials[J]. Progress in Chemistry , 2021, 33(5): 726-739. Preparation and Application of MOF-Based Hydrogel Materials

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  • A polyacrylamide hydrogel for application at high ...

    2018-6-16 · Preparation of hydrogels. The hydrogel preparation process was performed as follows: First, the polymer solution of 3 wt% was prepared by mixing the polymer powder and distillated water for 24 h at room temperature to obtain a homogeneous solution. Then, the solution was diluted by distilled water to a required concentration.

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  • Preparation of homogeneous polyacrylamide hydrogels

    2007-7-6 · 2.2. Hydrogel preparation The hydrogels were prepared in aqueous solu-tions at 21 C in the presence of 3.51 mM APS initiator and 0.25 v/v% TEMED accelerator. The crosslinker ratio, that is the mole ratio of the cross-linker BAAm to the monomers AAm + DMA or AAm + NIPA was fixed at 1/83. The initial concen-

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  • Polyacrylamide hydrogel application in sand control

    Preparation of Polyacrylamide Gels Role of Reagents Involved Reagents. Acrylamide and N, N’ -Methylene bisacrylamide, a stock solution containing 29% (w/v) acrylamide and 1% (w/v) N, N’ Methylene-bisacrylamide, should be prepared in deionized, warm water (to …

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  • Preparation of Polyacrylamide Gels | Electrophoresis ...

    2020-1-17 · In this study, Fe3O4 magnetic nanoparticles were synthesized in situ in the polyacrylamide/chitosan (PAAm/CS) hydrogel networks. The obtained hydrogels are characterized by Scanning electron microscopy (SEM), Transmission electron microscopy ...

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  • US20050175704A1 - Polyacrylamide hydrogel as a

    A hydrogel is obtained by combining acrylamide and methylene bis-acrylamide, radical initiation and washing with pyrogen-free water or saline solution to give less than 3.5% by weight polyacrylamide, based on the total weight of the hydrogel. The hydrogel may be used as a soft tissue filler endoprosthesis. Also disclosed is a method of filling a soft tissue in a mammal using the endoprosthesis ...

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  • Pore-Size Distributions of Cationic Polyacrylamide ...

    2021-3-12 · Polyacrylamide hydrogel membranes with controlled pore sizes. ... Modified polyacrylamide hydrogels and their application in removal of heavy metal ions. ... Preparation of modified polyacrylamide hydrogels and application in removal of Cu(II) ion. Polymer 2001, 42 (18) ...

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  • Hydrogels: Methods of Preparation, Characterisation

    2015-10-3 · Ease of application can also be problematic; although some hydrogels are sufficiently deformable to be injectable, many are not, necessitating surgical implantation [3]. Above problems restrict the practical use of hydrogel-based drug delivery systems in the clinical practice [3]. Classification of hydrogel products

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  • Polyacrylamide hydrogel application in sand control

    2007-7-6 · 2.2. Hydrogel preparation The hydrogels were prepared in aqueous solu-tions at 21 C in the presence of 3.51 mM APS initiator and 0.25 v/v% TEMED accelerator. The crosslinker ratio, that is the mole ratio of the cross-linker BAAm to the monomers AAm + DMA or AAm + NIPA was fixed at 1/83. The initial concen-

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  • Preparation of homogeneous polyacrylamide hydrogels

    2006-6-27 · Characterization and possible agricultural application of polyacrylamide/sodium alginate crosslinked hydrogels prepared by ionizing radiation. Hassan A. Abd El-Rehim, Corresponding Author. [email protected]; National Center for Radiation Research and Technology, Atomic Energy Authority, P.O. Box 29 Nasr City, Cairo, Egypt ...

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  • Characterization and possible agricultural application

    Graphene oxide (GO) related hydrogels have attracted more and more attention in recent years. However, rare report referring to the application of GO related hydrogel in peripheral nerve regeneration. In this study a composite hydrogel consisting of polyacrylamide, silk fibroin …

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  • Preparation and Characterization of

    Preparation of Polyacrylamide Gels Role of Reagents Involved Reagents. Acrylamide and N, N’ -Methylene bisacrylamide, a stock solution containing 29% (w/v) acrylamide and 1% (w/v) N, N’ Methylene-bisacrylamide, should be prepared in deionized, warm water (to …

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  • Preparation of Polyacrylamide Gels | Electrophoresis ...

    2019-9-3 · A series of ionic compounds 1,n-dialkyl-3,3′-bis-l-vinylimidazolium bromide (C n VIM) are prepared and employed to crosslink acrylamide for polyacrylamide (PAAM) hydrogel preparation via in situ solution polymerization. The swelling behavior, mechanical properties and thermal stability of the prepared C n VIM crosslinked PAAM hydrogels are investigated.

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  • Polyacrylamide crosslinked by bis-vinylimidazolium

    2011-11-30 · Mei-yi Xing, Cheng-long Yu, Yu-fen Wu, Lu Wang, Guo-ping Guan, Preparation and characterization of a polyvinyl alcohol/polyacrylamide hydrogel vascular graft reinforced with a braided fiber stent, Textile Research Journal, 10.1177/0040517519896753, (004051751989675), (2019).

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  • Highly stretchable gelatin‐polyacrylamide hydrogel

    2021-3-12 · Polyacrylamide hydrogel membranes with controlled pore sizes. ... Modified polyacrylamide hydrogels and their application in removal of heavy metal ions. ... Preparation of modified polyacrylamide hydrogels and application in removal of Cu(II) ion. Polymer 2001, 42 (18) ...

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  • Preparation and characterization of novel polymer

    2019-2-4 · An In Situ Procedure for the Preparation of Zeolitic Imidazolate Framework‐8 Polyacrylamide Hydrogel for Adsorption of Aqueous Pollutants Omar Maan Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, T2N 1N4 Canada

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  • Characterization and possible agricultural application

    2006-6-27 · Characterization and possible agricultural application of polyacrylamide/sodium alginate crosslinked hydrogels prepared by ionizing radiation. Hassan A. Abd El-Rehim, Corresponding Author. [email protected]; National Center for Radiation Research and Technology, Atomic Energy Authority, P.O. Box 29 Nasr City, Cairo, Egypt ...

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  • Preparation and characterization of polyacrylamide ...

    The XRD and TEM measurements confirmed the exfoliated nanocomposites with the Kaol filler. The swelling degree (SD) of the swollen hydrogel nanocomposite was increased following the addition of polyacrylamide-modified Kaol particles into the hydrogel structures.

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  • PHOTOGRAFTING OF POLYACRYLAMIDE HYDROGEL

    2015-2-24 · Nurul Hazlina et al: PHOTOGRAFTING OF POLYACRYLAMIDE HYDROGEL COATING ONTO VARIOUS POLYETHYLENE TEREPHTHALATE TEXTILES 164 preparation, structure, properties and application of hydrogel in catalysis, photonics, optics, pharmaceutics and biomedicine [4].

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  • Polyacrylamide crosslinked by bis-vinylimidazolium

    2019-9-3 · A series of ionic compounds 1,n-dialkyl-3,3′-bis-l-vinylimidazolium bromide (C n VIM) are prepared and employed to crosslink acrylamide for polyacrylamide (PAAM) hydrogel preparation via in situ solution polymerization. The swelling behavior, mechanical properties and thermal stability of the prepared C n VIM crosslinked PAAM hydrogels are investigated.

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  • Synthesis and Characterization of Polyacrylamide Based ...

    2013-5-23 · carboxymethylcellulose to polyacrylamide will enhance abilities of hydrogel and antibacterial actions will be increased by this new hydrogel. The objective of this work is to characterize the MgO nanocomposite hydrogel and evaluate the effect of synthesized hydrogel towards the inhibition of microbial activity. 2 Problem Formulation

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  • Preparation and characterization of novel polymer

    2011-11-30 · It was noted that the hydrogel prepared by radical polymerization showed high swelling capacity, 60.00%, compared to that prepared by the addition reaction, 27.27%. The hydrogels formed were used also to study the influence of sodium chloride on the absorption capacity at room temperature and swelling ratios at different temperatures and pHs ...

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  • Effect of patterned polyacrylamide hydrogel on

    We recently demonstrated that patterned Parylene C films could be effectively used as a mask for directly copolymerizing proteins on polyacrylamide hydrogel (PAm). In this work, we have proved the ...

    Get Price
  • An In Situ Procedure for the Preparation of Zeolitic ...

    2019-2-4 · An In Situ Procedure for the Preparation of Zeolitic Imidazolate Framework‐8 Polyacrylamide Hydrogel for Adsorption of Aqueous Pollutants Omar Maan Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, T2N 1N4 Canada

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  • Fabrication of novel MXene (Ti3C2)/polyacrylamide ...

    A highly stretchable nanocomposite (NC) hydrogel was fabricated via in situ free radical polymerization of acrylamide. In particular, an exfoliated two-dimensional MXene (Ti 3 C 2) nanosheet was utilized as a crosslinker instead of traditional organic crosslinkers.The exfoliated Ti 3 C 2 nanosheets were confirmed by atomic force microscopy (AFM) and dynamic light scattering (DLS) measurements.

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  • PHOTOGRAFTING OF POLYACRYLAMIDE HYDROGEL

    2015-2-24 · Nurul Hazlina et al: PHOTOGRAFTING OF POLYACRYLAMIDE HYDROGEL COATING ONTO VARIOUS POLYETHYLENE TEREPHTHALATE TEXTILES 164 preparation, structure, properties and application of hydrogel in catalysis, photonics, optics, pharmaceutics and biomedicine [4].

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  • Polyacrylamide hydrogels and hydrogel arrays made

    Preparation of a polyacrylamide hydrogel array preferably comprises additional steps, optionally, developing the pattern in the array, and further optimally selectively removing the uncrosslinked polymer in aqueous solution (e.g., water) to produce the polyacrylamide hydrogel array.

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  • Preparation, Characterization, and Evaluation of Water ...

    2021-4-27 · This study concerns the preparation, characterization and evaluation of water-swellable hydrogel via grafting cross-linked polyacrylamide (PAM) chains onto gelatin backbone by free radical polymerization for agricultural applications.

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  • An In Situ Procedure for the Preparation of Zeolitic ...

    2019-2-4 · An In Situ Procedure for the Preparation of Zeolitic Imidazolate Framework‐8 Polyacrylamide Hydrogel for Adsorption of Aqueous Pollutants Omar Maan Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, T2N 1N4 Canada

    Get Price
  • Effect of patterned polyacrylamide hydrogel on

    We recently demonstrated that patterned Parylene C films could be effectively used as a mask for directly copolymerizing proteins on polyacrylamide hydrogel (PAm). In this work, we have proved the ...

    Get Price
  • Late complications after application of polyacrylamide ...

    Since 1994, a new filling material (polyacrylamide 5% hydrogel, composed of acrylamide, methylenbisacrylamide, tetramethylendiamine and distilled water) has been used by several surgeons in Bulgaria. The indications for the use of hydrogel as recommended by the manufacturer are as follows: treatment of depressions and wrinkles of the glabella, malar and upper lip region, lip augmentation ...

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  • Preparation of Hydrogel Substrates with Tunable

    2010-6-1 · Preparation of Hydrogel Substrates with Tunable Mechanical Properties. Justin R. Tse, Department of Bioengineering, University of California, San Diego, La Jolla, California ... In this unit, we detail a protocol for the fabrication of statically compliant and radial-gradient polyacrylamide hydrogels, as well as the functionalization of these ...

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  • Rapid solidification of Portland cement/polyacrylamide ...

    polyacrylamide hydrogel (PC/PAM) composites for diverse wastewater treatments Shaoxiong Ye, a Pan Feng*ab and Wei Zhang a Cementitious solidification is an effective but time-consuming method for waste disposal, and the incorporation of polyacrylamide hydrogel in Portland cement paste is a simple way to enhance the time-

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  • A novel carbon dot/polyacrylamide composite

    First published on 29th June 2021. A carbon dot/polyacrylamide (CDs/PAM) composite hydrogel film with stable fluorescence performance was fabricated by merging a hydrogel film and carbon dots (CDs) with blue fluorescence, which were prepared by hydrothermal synthesis using anhydrous citric acid and acrylamide as carbon sources.

    Get Price
  • Fabrication of novel MXene (Ti3C2)/polyacrylamide ...

    A highly stretchable nanocomposite (NC) hydrogel was fabricated via in situ free radical polymerization of acrylamide. In particular, an exfoliated two-dimensional MXene (Ti 3 C 2) nanosheet was utilized as a crosslinker instead of traditional organic crosslinkers.The exfoliated Ti 3 C 2 nanosheets were confirmed by atomic force microscopy (AFM) and dynamic light scattering (DLS) measurements.

    Get Price
  • POLYACRYLAMIDE BASED HYDROGELS: SYNTHESIS ...

    Hydrogels are polymeric networks those imbibe large quantity of water without dissolving themselves. Hydrogels contain water solubility groups such as –OH, -COOH, -NH2, -CONH2, andSO3H. Polyacrylamide hydrogel is widely used in ophthalmic operations, drug treatment, food packaging products, and water purification.This review describes the various methods of synthesis of polyacrylamide …

    Get Price
  • Synthesis and Characterization of Polyacrylamide Based ...

    2013-5-23 · carboxymethylcellulose to polyacrylamide will enhance abilities of hydrogel and antibacterial actions will be increased by this new hydrogel. The objective of this work is to characterize the MgO nanocomposite hydrogel and evaluate the effect of synthesized hydrogel towards the inhibition of microbial activity. 2 Problem Formulation

    Get Price
  • Performance of Polyacrylamide and

    2019-2-8 · Layered double hydroxide/polyacrylamide nanocomposite hydrogels: Green preparation, rheology and application in methyl orange removal from aqueous solution Journal of Molecular Liquids ( IF 5.065) Pub Date : 2019-02-08, DOI: 10.1016/j.molliq.2019.02.033

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  • Swelling and Mechanical Properties of Polyacrylamide ...

    2018-11-15 · (DEOP), polyacrylamide (PAM) as the precursor to the final product and -linker. In the a cross case of copolymer hydrogel, both acrylamide and sodium acrylate are used as monomers. BIS is an important factor in governing the size of the pores of the hydrogel which inturn affects the swelling index of the hydrogel.

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  • [PDF] Hydrogel: Preparation, characterization, and ...

    2021-6-21 · of the preparation methods of the mechanical properties of the resulting dual-crosslink gels. A meaningful comparison of hydrogel mechanical properties can only be carried out at the same water content, and this introduces some constraints: one-pot synthesis allows swelling-ratio control during preparation, while in the diffusion method, dual ...

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  • Graphene Improves the Biocompatibility of

    Synthesis and application of superabsorbent polymer microspheres for rapid concentration and quantification of microbial pathogens in ambient water ... Preparation of alginate hydrogel microparticles using droplet-based microfluidics: a review of methods ... superporous hydrogel hybrids of polyacrylamide and sodium alginate. H. Omidian, Jose G ...

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  • THE NANOPOROUS MORPHOLOGY OF

    2017-9-8 · A chemically cross-linked polyacrylamide gel (AM) prepared without graphene and a series of hybrid graphene-polyacrylamide gels (AMGX, being X the …

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  • Swelling Behavior of Polyacrylamide–Cellulose

    2021-5-31 · polyacrylamide hydrogel..... 25 2.6 Effect of crosslinker concentration on gel pore structure in a 6 %T crosslinked polyacrylamide hydrogel..... 26 2.7 Evolution of the storage modulus G' during photopolymerization of

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  • Self-regenerating compliance and lubrication of ...

    PAm hydrogel exhibits a broad diffraction peak at 2θ = 23.2°, indicating an amorphous nature of the hydrogel. After blending CNC in polyacrylamide, PAC3 shows some crystalline characteristic peaks of CNC, 22.58° and 16.2° in an XRD pattern; meanwhile, the …

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  • Preparation of photodegradable polyacrylamide

    The XRD and TEM measurements confirmed the exfoliated nanocomposites with the Kaol filler. The swelling degree (SD) of the swollen hydrogel nanocomposite was increased following the addition of polyacrylamide-modified Kaol particles into the hydrogel structures.

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  • Preparation and characterization of polyacrylamide ...

    Polyacrylamide/MgCl2 hybrid hydrogel desiccant was prepared from magnesium chloride and polyacrylamide by aqueous solution polymerization. The hybrid hydrogel was synthesized and characterized by X-ray diffraction. The effect of the experimental factors such as content of magnesium chloride, concentration of cross-linking agent, initiator content on hygroscopic performance of the …

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  • Frontiers | Preparation, Properties, and Applications of ...

    علوم و تکنولوژی پلیمر (2013-01-01) . Preparation of Composite Hydrogel Based on Polyacrylamide and the Effect of Kaolinite on Its Properties in the Reservoir Conditions

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  • Preparation and Hygroscopic Property of the

    polyacrylamide hydrogel (PC/PAM) composites for diverse wastewater treatments Shaoxiong Ye, a Pan Feng*ab and Wei Zhang a Cementitious solidification is an effective but time-consuming method for waste disposal, and the incorporation of polyacrylamide hydrogel in Portland cement paste is a simple way to enhance the time-

    Get Price
  • Preparation of Composite Hydrogel Based on

    2019-4-21 · crosslink density of hydrogel on the character of Polypyrrole distribution in the matrix is studied. The above composites combine the electrical characteristics of Polypyrrole with high elasticity and the ability to repeatedly swell the cross-linked poly (acrylamide). Keywords: polyacrylamide, Polypyrrole, matrix, hydrogels, swell.

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  • The New Approach to the Preparation of

    Here we describe a facile preparation of chitosan-based injectable hydrogels using dynamic imine chemistry. Methods to adjust the hydrogel’s mechanical strength and its application …

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  • Rapid solidification of Portland cement/polyacrylamide ...

    2021-7-1 · Molecules Molecules20212021, ,2626, x FOR PEER REVIEW, 4037 3 3 of 16of 17 Scheme 1. Schematic illustration of synthesis and application of hydrogel. (A) Preparation scheme of HA-ADH; (B) Preparation scheme of ODex; (C) Preparation and application of hydrogels in a rat

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