Table 2.

Classification of PVP [1,3,11,[17], [18], [19]].

Chemical form	Homopolymers	Copolymers	Cross-linked
Name	• Povidone	• Copovidone	• Crospovidone
Synthesis	• Free radical polymerization	• Copolymerization	• Popcorn polymerization
Main features	• Water-soluble • More hygroscopic • Types based on molecular weight	• Water-soluble • Less hygroscopic • PVP-Vinyl acetate copolymer	• Water-insoluble • Highly swellable • Crosslinked povidone
Synonyms	• Povidone • Povidonum • Poly(1-vinyl-2-pyrrolidone) • PVP	• Copovidonum • Copolyvidone • Copovidon • PVP-Vac-copolymer	• Crospovidone • Crosployvidone • Insoluble PVP • Crosslinked PVP • Polyvinyl-polypyrrolidone • PVPP
BASF marketed grades	Kollidon 12, 12 PF, 17 PF, 25, 30, 30LP, 90F	Kollidon VA 64, VA 64 Fine, Kollidon SR	Kollidon CL, CL-M#, CL-F, CL-SF
Ashland marketed grades	Agrimer 15, 30, 60L, 90, 120	Agrimer VA 3E, 5E, 6, 64, 6E, 7E, 3I, 5I, 7I, 7W	Polyplasdone XL, XL-10, INF-10, Ultra, Ultra 10
ISP marketed grades (acquired by Ashland)	Plasdone C-12, C-15, C-17, C-30, K-25, K-29/32, K-90, K-90D, K-90 M*	Plasdone S-630	Polyplasdone XL, XL-10, INF-10, Ultra, Ultra 10
JRS Pharma marketed grades	Vivapharm PVP K25, K 30	Vivapharm PVP/VA 64	Vivapham PVPP XL, XL-10