N-Vinyl-2-pyrrolidone is a colorless to light yellow liquid with a mild characteristic odor. Its molecular formula is C6H9NO, and its molecular weight is 111.14 g/mol. It is a water-soluble monomer that can polymerize in the presence of free radical initiators to form a range of homopolymers and copolymers.

N-Vinyl-2-pyrrolidone is a versatile chemical that finds use in a variety of applications. It is commonly used as a reactive diluent in UV-curable coatings, inks, and adhesives, as well as in the manufacture of polyvinylpyrrolidone (PVP) and related copolymers. It is also used as a dispersant and binder in the production of ceramics, metals, and composites.

Application:

1. UV-curable coatings, inks, and adhesives: N-Vinyl-2-pyrrolidone is often used as a reactive diluent in these materials to improve their properties, such as adhesion, durability, and curing speed.
2. Polyvinylpyrrolidone (PVP) and related copolymers: N-Vinyl-2-pyrrolidone is a key monomer used in the manufacture of PVP and its copolymers, which find use in a wide range of applications, including pharmaceuticals, personal care products, and food and beverage processing.
3. Dispersant and binder in ceramics, metals, and composites: N-Vinyl-2-pyrrolidone is used as a dispersant and binder in the production of ceramics, metals, and composites to improve their properties, such as strength, adhesion, and thermal stability.
4. Textile processing: N-Vinyl-2-pyrrolidone is used in the textile industry as a wetting and dispersing agent, as well as a binder in fiber sizing and finishing.
5. Water treatment: N-Vinyl-2-pyrrolidone is used as a flocculant and coagulant aid in water treatment to improve the removal of suspended solids and organic matter.
6. Miscellaneous applications: N-Vinyl-2-pyrrolidone is also used in a variety of other applications, including electrolyte solutions for batteries, ion-exchange resins, and as a solvent for organic synthesis.