Explanation

polyelectrolyte are macromolecule elonrolyte, including linear or branched synthesis and natural water soluble polymer, whose structural units contain ionizable groups. According to the ionized groups contained in polyelectrolyte, they can be divided into three categories: anionic polyelectrolyte (i.e. polyacids), cationic polyelectrolyte (i.e. polybases) and amphoteric polyelectrolyte containing both anionic and cationic groups. Anionic polyelectrolyte mainly include synthetic polymer and natural polymer with carboxylic acid group, sulfonic acid group and phosphoric acid group in the side chain of polymer; cationic polyelectrolyte mainly include macromolecule with quaternary ammonium salt group and pyridine salt group in the side chain of polymer. polyelectrolyte can usually be dissolved in water and ionized into a macromolecule polyion and many counter ions, which can form a strong macromolecule electrostatic field. polyelectrolyte has the properties of both elonrolyte and macromolecule. Its solution is similar to elonrolyte solution and can conduct electricity; It is also similar to macromolecule solution, which has great viscosity. As a soft matter system, polyelectrolytes play an important role in the stability and interaction of many molecular assembly structures. polyelectrolyte can be used as thickener, dispersing agent, coagulant, emulsifier, suspension stabilizer, adhesive for food, cosmetics, medicine and coatings, finishing agent for leather and textiles, soil conditioners, paper reinforcing agent, fabric antistatic agent, etc. New conjugated polyelectrolyte combine the photoelectric properties of conjugated polymer and the water solubility of polyelectrolyte, showing great application prospects in a series of aqueous fluorescence detection and biological applications, including their fluorescence detection of biomacromolecule such as metal ions, proteins, DNA, etc. In addition, because their ionic groups can have electrostatic interactions with other charged substances, they can be used to make organic optoelectronic devices by layer by layer self-assembly or inkjet printing methods, which can realize the production of large area display devices, showing their unique advantages in the production of new generation optoelectronic devices.

Classification