N-vinylimidazole-N-vinyl-2-pyrrolidone copolymers. Part I. Reactivity ratios, solubility and viscosimetric study

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dc.contributor.authorMartinez Pina, F
dc.contributor.authorGargallo, L
dc.contributor.authorRadic, D
dc.date.accessioned2024-01-10T13:51:16Z
dc.date.available2024-01-10T13:51:16Z
dc.date.issued1998
dc.description.abstractCopolymers of N-vinylimidazole M with N-vinyl-2-pyrrolidone (VP), (VI-co-VP) were obtained by radical polymerization using alpha,alpha'-azobisisobutyronitrile as initiator. The copolymers were characterized by H-1 NMR and viscosimetric measurements. The monomer reactivity ratios were estimated to be r(1) = 1.00 for VP and r(2) = 0.07 for VI by the Fineman-Ross and Kelen-Tudos linear procedures. These parameters were also estimated using a computer program based on a non-linear minimization algorithm (NLMA) starting from the values of r(1) and r(2) obtained by the linear procedures. All copolymers could be considered as random. The solubility in chloroform, n-butanol and n-propanol depends on the copolymer composition. Water, methanol and ethanol are solvents, irrespective of the copolymer compositions. The viscosimetric behaviour of unfractionated copolymers of one composition was studied in dilute solution in water (pH 2.0 and 6.0) at 0.01 M (NaCl) ionic strength and in methanol. (C) 1998 Society of Chemical Industry
dc.fechaingreso.objetodigital03-04-2024
dc.format.extent5 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1002/(SICI)1097-0126(199811)47:3<340
dc.identifier.issn0959-8103
dc.identifier.urihttps://doi.org/10.1002/(SICI)1097-0126(199811)47:3<340
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/79590
dc.identifier.wosidWOS:000076978200014
dc.information.autorucQuímica;Gargallo L;S/I;98194
dc.information.autorucQuímica;Radic D;S/I;49367
dc.issue.numero3
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final344
dc.pagina.inicio340
dc.publisherJOHN WILEY & SONS LTD
dc.revistaPOLYMER INTERNATIONAL
dc.rightsacceso restringido
dc.subjectrandom copolymers
dc.subjectreactivity ratios
dc.subjectN-vinyl-2-pyrrolidone
dc.subjectN-vinyl imidazole
dc.subjectnon-linear minimization algorithm
dc.subjectreactivity ratios error-invariable model
dc.subjectBINDING
dc.subjectPOLYVINYLPYRROLIDONE
dc.subjectVINYLPYRROLIDONE
dc.subjectBEHAVIOR
dc.subjectPOLYMERS
dc.subjectBLENDS
dc.titleN-vinylimidazole-N-vinyl-2-pyrrolidone copolymers. Part I. Reactivity ratios, solubility and viscosimetric study
dc.typeartículo
dc.volumen47
sipa.codpersvinculados98194
sipa.codpersvinculados49367
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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