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N-Vinylpyrrolidone (NVP) is an organic compound consisting of a 5-membered lactam ring linked to a (2 carbon) vinyl group. It is a colorless liquid although commercial samples can appear yellowish. It is produced industrially by vinylation of 2-pyrrolidone, i.e. the base-catalyzed reaction with acetylene. [2]
Polyvinylpyrrolidone (PVP), also commonly called polyvidone or povidone, is a water-soluble polymer compound made from the monomer N-vinylpyrrolidone. [1] PVP is available in a range of molecular weights and related viscosities, and can be selected according to the desired application properties. [2]
2-Pyrrolidone itself is used in inkjet cartridges. [5] A variety of pharmaceutical drugs are 2-pyrrolidone derivatives, including cotinine, doxapram, povidone, and ethosuximide, and the racetams. The chemical is an intermediate in the production of the polyvinylpyrrolidone precursor vinylpyrrolidone. [3]
N-Methyl-2-pyrrolidone (NMP) is an organic compound consisting of a 5-membered lactam. It is a colorless liquid, although impure samples can appear yellow. It is miscible with water and with most common organic solvents. It also belongs to the class of dipolar aprotic solvents such as dimethylformamide and dimethyl sulfoxide.
It is polydimethylsiloxane elastomer particles suspended in a biocompatible carrier hydrogel of poly-N-vinyl-pyrrolidone (povidone). Significantly more publications exist which investigate this material compared to the other materials, [ 4 ] and it has been the most widely used bulking material used for FI. [ 10 ]
2 1/2 oz. Fill a cocktail mixing glass or medium glass measuring cup with ice. Add gin, vermouth, and olive brine. Vigorously stir until very cold, 30 to 45 seconds. Strain into a chilled martini ...
Solution of PVDF 1−2% by mass in N-methyl-2-pyrrolidone (NMP) is mixed with an active lithium storage material such as graphite, silicon, tin, LiCoO 2, LiMn 2 O 4, or LiFePO 4 and a conductive additive such as carbon black or carbon nanofibers.
In a statement, Merck said regulatory agencies have continued to conclude HPV vaccines are safe and effective, as have 30 years of research. Clinical trials have included over 70,000 people with ...