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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]
Polyvinylpolypyrrolidone (polyvinyl polypyrrolidone, PVPP, crospovidone, crospolividone, or E1202) is a highly cross-linked modification of polyvinylpyrrolidone (PVP). The cross-linked form of PVP is used as a disintegrant (see also excipients ) in pharmaceutical tablets. [ 1 ]
It is produced industrially by vinylation of 2-pyrrolidone, i.e. the base-catalyzed reaction with acetylene. [2] It is the precursor to polyvinylpyrrolidone (PVP), an important synthetic material. The NVP monomer is commonly used as a reactive diluent in ultraviolet and electron-beam curable polymers applied as inks, coatings or adhesives. [2]
Polyacrylic acid is a weak anionic polyelectrolyte, whose degree of ionisation is dependent on solution pH. In its non-ionised form at low pHs, PAA may associate with various non-ionic polymers (such as polyethylene oxide, poly-N-vinyl pyrrolidone, polyacrylamide, and some cellulose ethers) and form hydrogen-bonded interpolymer complexes. [17]
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Divinylbenzene (DVB) is an organic compound with the chemical formula C 6 H 4 (CH=CH 2) 2 and structure H 2 C=CH−C 6 H 4 −HC=CH 2 (a benzene ring with two vinyl groups as substituents).It is related to styrene (vinylbenzene, C 6 H 5 −CH=CH 2) by the addition of a second vinyl group. [2]
Poly(vinyl alcohol) Poly(methyl methacrylate) Poly(caprolactone) Poly; Poly(vinyl pyrrolidone) Poly(vinyl chloride) Poly(vinylidene fluoride) Poly(imide) [8] Many of these polymers have other applications. The structures of several of these polymers are shown in the adjacent image. Showcases several of these polymers.
With the seed-mediated approach to silver nanoprism synthesis, selectivity of one shape over another can in part be controlled by the capping ligand. Using essentially the same procedure above but changing citrate to poly (vinyl pyrrolidone) (PVP) yields cube and rod-shaped nanostructures instead of triangular nanoprisms. [59]