[PDF] Top 20 Effect of pH, and Salinity onto Swelling Properties of Hydrogels Based on H-alginate-g-poly(AMPS)
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Effect of pH, and Salinity onto Swelling Properties of Hydrogels Based on H-alginate-g-poly(AMPS)
... These hydrogels exhibit a thermodynamic compatibility with water that allows them to swell in aqueous ...media. Hydrogels are best considered as polymeric materials, which are able to swell in water and ... See full document
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Effect of Chemical Parameters on the Properties of Hydrogels Prepared by using Gamma Radiation Polymerization
... hydrogel based on H-protein-g-poly(AMPS-co-AA), the reaction conditions were attempted to optimize for obtaining graft copolymers with higher swelling ...absorbency(450 ... See full document
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Preparation, characterization, and water sorption study of 2 acrylamido 2 methylpropane sulfonic acid (AMPS) based hydrogel
... e effect on the Swelling ratio especially for the hydrogel composed of ionic ] like these ...The swelling experiment is carried out a pH sults in fig 7 indicate that the hydrogel is sensitive ... See full document
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Synthesis and Properties of Biopolymer based on Carboxymethyl Cellulose-g-Poly(N-vinyl pyrollidin-co-2-Acrylamido-2-methyl propan Sulfonic Acid as Superabsorbent hydrogels
... superabsorbent hydrogels were prepared by grafting crosslinked poly(NVP-co-AMPS) chains onto CMC backbones through a free radical polymerization ...The effect of concentration of MBA as ... See full document
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N cyclohexylacrylamide based hydrogels II: Synthesis and characterization of poly(N cyclohexylacrylamide co acrylamide/sodium acrylate) hydrogels
... [2-4]. Hydrogels can swell to profitable rates when placed into an appropriate environment, which means a specific pH, temperature, electric field, light, pressure or specific molecule ...the ... See full document
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SYNTHESIS AND CHARACTERIZATION OF SUPER ABSORBENT HYDROGELS BASED ON POLYACRYLAMIDE WITH SAGO AGRICULTURAL APPLICATIONS
... water. Hydrogels based on polyacrylamide have wide potential for used as superabsorbent, sanitary materials as specific sorbents separation and enrichment ...retention properties of superabsorbent ... See full document
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Synthesis, swelling behaviour, salt and pH sensitivity of crosslinked gellan gum graft poly (acrylamide co itaconic acid) hydrogels
... GG based copolymer hydrogel has been synthesized through graft copolymerization of AAm and IA along with MBA on ...highest swelling were optimised. The swelling studies revealed that hydrogels ... See full document
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“A Conceptual Overview on Superporous Hydrogels” by Jishan Ali Ahmed, Arindam Chatterjee, Bhupendra Singh Chauhan, Manish Jaimini, Himanshu M. Varshney, India.
... mechanical properties are most important properties of superporous ...Superporous hydrogels shows high swelling ratio but low ...adequate swelling and mechanical strength is still ... See full document
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Nanocomposite hydrogel-based biopolymer modified with silver nanoparticles as an antibacterial material for wound treatment
... develop hydrogels that are renewable, biodegradable, biocompatible, and not immunogenic (Gharekhania et ...unique properties of sodium alginate and its relatively low cost have made it one of the ... See full document
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Alginate-based hydrogels functionalised at the nanoscale using layer-by-layer assembly for potential cartilage repair
... method, based on the alternating exposure of positively and negatively solutions of charged polymers called polyelectrolytes (PEs), is inexpensive and ...on hydrogels is currently emerging as a useful tool ... See full document
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Study Effect of Various Environmental Conditions on the Swelling Property of Biocopolymer Based on Carrageenan-g-polyMethacrylic acid Hydrogel
... the swelling capacity decreased with an increase in the ionic strength of the swelling ...screening effect for monovalent cations, as well as ionic crosslinking for multivalent ...high ... See full document
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Swelling and Characterization Behavior of Anti-salt Superabsorbent based on Carboxymethyl Cellulose-g-PAA-co-BuMC Hydrogel
... The effect of increasing cation charge on ultimate absorption for the different CMC-g-PAA- co-BuMC superabsorbents can be found from the values, so that the lower the cation charge, the lower the salt ... See full document
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Blends Expoxidized Oil/Acacia Polymeric Films and their Effect of External Stimuli on the Equilibrium Swelling Properties
... these swelling-deswelling experiments are "significantly controlled by the size and shape of the hydrogels/polymeric films ...overall swelling kinetics may be governed by the ion exchange ... See full document
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Synthesis Of Gum Tragacanth-Cl-Poly (Acrylic Acid) Superabsorbent Hydrogels with Salt, pH and Electrical Responsive Properties
... acid-based hydrogels were prepared using KPS-ascorbic acid as an initiator and glutaraldehyde as crosslinker via free radical graft copolymerization ...of poly (AA) on to Gum ...different pH ... See full document
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Synthesis and Evaluation of pH and Salinity-Sensitive Superabsorbent Hydrogel Based on Starch-g-poly (MAA-co-HEMA) as Oral Drug Delivery Systems
... mixtures onto starch. The superabsorbent hydrogels exhibited high sensitivity to pH, so that, several swelling changes of the hydrogel were observed in pH variations of a wide range ... See full document
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Effect of Ultrasonic Stimulation on Mechanical Properties of Alginate Beads
... thermal effect of the ultrasonic stimulation resulted in a linear decrease in the diameter of the beads with an increase in the solution ...thermal effect, no change in the shear moduli of the sonicated ... See full document
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Swelling Properties of New Hydrogels Based on the Dimethyl Amino Ethyl Acrylate Methyl Chloride Quaternary Salt with Acrylic Acid and 2 Methylene Butane 1,4 Dioic Acid Monomers in Aqueous Solutions
... diffusion and tension relaxation which are developed du- ring swelling of the xerogels. As Table 2 shows the hy- drogel which swells the most is an unusual system with a characteristic n exponent higher than 1. ... See full document
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Journal of Applied Pharmaceutical Science
... The swelling and deswelling kinetic studies of the PAH hydrogels with different HPM and MBA concentrations are shown in figure ...The swelling data shows that the rate of swelling is increased ... See full document
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Effect of salinity and zinc on physiological and nutritional responses of rosemary
... This research was carried out hydroponically in green- house conditions between March and August 2008. Plants of rosemary from uniform rooted cuttings were transplanted to 5 l pots containing Hoagland nutrient solution. ... See full document
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Synthesis and Properties of Thermo-Sensitive Hydrogels Based on PVA/Chitosan/PNIPAAm
... samples in the solvents at 48 hour show that the samples dissolved in solvents also acetic acid (solvent for chitosan) and water (solvent for PVA) and ethanol (solvent for NIPAAm). This result well demonstrated grafting ... See full document
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