Introduction to Polyelectrolyte Hydrogels

What is/are Polyelectrolyte Hydrogels?

Polyelectrolyte Hydrogels - In order to provide Fc-containing supramolecular polyelectrolyte hydrogels whose swelling property is largely improved by host-guest interaction, a covalently cross-linked polyelectrolyte hydrogel is soaked into the β-CD aqueous solution to form β-CD@Fc supramolecular polyelectrolyte hydrogel, or alternatively the quaternary ammonium salt supramolecular monomer is first formed, then copolymerized with a crosslinking agent to fabricate the supramolecular hydrogel with better water absorption ability. ^[1] 5 mM NaCl and Na2 SO4 ) on the gel, rheological and structural properties of fish gelatin (FG)-κ-carrageenan (κC) polyelectrolyte hydrogels. ^[2] Starch cross-linking with other biopolymers such as xanthan gum is promising for obtaining novel polyelectrolyte hydrogels with improved functional properties. ^[3] By this article, we continue studying weak polyelectrolyte hydrogels and their application as a desalination agent. ^[4] Our result predict that weak polyelectrolyte hydrogels, such as the often employed poly(acrylic acid), can be efficiently used to lower the salinity of sea- or brackish water, while they will be inefficient in desalinating water of low salinity. ^[5] In this study, we fabricated a series of polyelectrolyte hydrogels bearing a 3-trimethylammoniumpropyl pendant to a methacrylamide-based backbone and examined the switchability with hydrophobic-like counteranions. ^[6] A constitutive model is developed to describe the effects of pH and molar fraction of salt in a solution on the critical temperature of TR polyelectrolyte hydrogels. ^[7] Hence, in the present work, polyelectrolyte hydrogels are investigated in consideration of the mechanical characteristics via a tensile test. ^[8] Polyelectrolyte hydrogels have great potential as gel-polymer electrolytes (GPE) because of their lowcost and environmental benefits. ^[9] The hydrogels are adhesive to many surfaces including polyelectrolyte hydrogels, skin, glasses, silicone rubbers, and nitrile rubbers. ^[10] In the case of polyelectrolyte hydrogels, the charges localized on the polymer chains, which mainly drive the swelling pressure inside the hydrogel, can also separate added salt via charge-based selectivity (Donnan exclusion). ^[11] Herein, two series of safe and reliable polyelectrolyte hydrogels (PEHs) were prepared from two oppositely charged polysaccharides, namely tragacanth (TG) and chitosan (CS), and applied for the delivery of ibuprofen as a model drug. ^[12] The objective of this work was to study the effect of the loading of monomers (cationic, anionic and ampholytes) in the preparation of polyelectrolyte hydrogels (PEHG) based on alkylated vinylated chitosan, in order to improve the understanding of the effect of ionic monomers on the polymerization of alkylated vinyl chitosan to obtain PEHGs. ^[13] Other prior research demonstrates the effectiveness of superporous polyelectrolyte hydrogels for water sorption and diffusion (Smith, 2017, 2481-2488; Ida, 2018). ^[14] Quantitative information on the swelling/adsorption behaviors of novel polyelectrolyte hydrogels and semi-IPNs which can be used in many potential applications were given in this study. ^[15]

Novel Polyelectrolyte Hydrogels

Starch cross-linking with other biopolymers such as xanthan gum is promising for obtaining novel polyelectrolyte hydrogels with improved functional properties. ^[1] Quantitative information on the swelling/adsorption behaviors of novel polyelectrolyte hydrogels and semi-IPNs which can be used in many potential applications were given in this study. ^[2]

Weak Polyelectrolyte Hydrogels

By this article, we continue studying weak polyelectrolyte hydrogels and their application as a desalination agent. ^[1] Our result predict that weak polyelectrolyte hydrogels, such as the often employed poly(acrylic acid), can be efficiently used to lower the salinity of sea- or brackish water, while they will be inefficient in desalinating water of low salinity. ^[2]