pyrrolidone


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pyrrolidone

(pēr-rōl-i-dōn'),
Member of a family of chemicals related by structure; produces diverse activity on biologic systems.
Synonym(s): 2-oxopyrrolidine
References in periodicals archive ?
A combination of methyl methacrylate (MMA) and vinyl pyrrolidone (VP) was also used with a degree of success.
Piracetam possesses a pyrrolidone skeleton, which is the cyclic derivative of the neurotransmitter [gamma]-aminobutyric acid (GABA) (Winblad, 2005).
N-vinyl pyrrolidone (NVP) is a hydrophilic monomer, which compose of nitrogen atoms five-membered ring.
John, S, Kuruvilla, M, Josep, A, "Surface Morphological and Impedance Spectroscopic Studies on the Interaction of Polyethylene Glycol (PEG) and Polyvinyl Pyrrolidone (PVP) with Mild Steel in Acid Solutions.
Polyvinyl pyrrolidone was preferred for blending with PVAc to add polar group and an amphyphilic character for increase the solubilization of the dodecenol molecule, other pheromone component.
Four hundred mg of various MW of PEG (MW: 1,000, 4,000, 6,000, 20,000), polyvinyl pyrrolidone (PVP, MW: 10,000) or insoluble polyvinyl polypyrrolidone (PVPP) were also added into the syringes.
25% weight in the nanocomposite coating; and a nanometer powder having 1%-10% weight in the nanocomposite coating; wherein the nanocomposite coating is formed by mixing the nanometer inorganic oxide gel, the organic solvent and the nanometer powder together; wherein the nanometer powder is processed by a surfactant before being mixed with the nanometer inorganic oxide gel and the organic solvent to form the nanocomposite coating; wherein the surfactant is any one of or a mixture of a sodium dodecylsulphonate and a polyvinyl pyrrolidone.
Lutrol F127, Poly vinyl pyrrolidone (Kollidon[R] K30) was purchased From BASF, Germany and Colloidal silicon dioxide (Aerosil 200, Degussa, Frankfurt, Germany); lactose was purchased from Meggle Pharma, Germany.
While a polymer binder such as polyvinyl difluoride is employed using the highly toxic solvent N-methyl pyrrolidone, Davidson foresees the use of water-based binders based on cellulose.
Levetiracetam is a pyrrolidone derivative chemically unrelated to existing antiepileptic active substances, CHMP said, adding that the mechanism of action of levetiracetam still remains to be fully elucidated but appears to be different from the mechanisms of current antiepileptic medicinal products.