Polyelectrolyte

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Polyelectrolyte

Polyelectrolyte (/ˌpɒliɪˈlɛktrəlaɪt/) is a type of polymer in which the monomer units are charged. This term is derived from the Greek words 'poly' meaning 'many', and 'electrolyte', which refers to a substance that produces an electrically conducting solution when dissolved in a polar solvent.

Definition

A polyelectrolyte is a high molecular weight polymer that carries ionizable groups and, hence, can exist as a polycation or a polyanion. The charges are introduced by covalent bonding and are an integral part of the polymeric structure.

Types of Polyelectrolytes

Polyelectrolytes can be classified into two types: natural and synthetic. Natural polyelectrolytes include proteins, DNA, and RNA. Synthetic polyelectrolytes include polyacrylic acid, polyvinyl alcohol, and polyethyleneimine.

Applications

Polyelectrolytes have a wide range of applications in various fields. They are used in water treatment, as flocculating agents, in oil recovery, as thickeners in cosmetics, and in drug delivery systems.

See Also

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External links

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