Graft copolymerization of n-vinyl-2-pyrrolidone on dimethyl sulfoxide pretreated poly(ethylene terephthalate) films using azobisisobutyronitrile initiator

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dc.contributor.authorUnal, HI
dc.contributor.authorCoskun, R
dc.contributor.authorSanli, O
dc.contributor.authorYigitoglu, M
dc.date.accessioned2020-06-25T17:34:35Z
dc.date.available2020-06-25T17:34:35Z
dc.date.issued1997
dc.departmentKırıkkale Üniversitesi
dc.description.abstractPoly(ethylene terephthalate) (PET) films were grafted with n-vinyl-2-pyrrolidone (n-VP) using an azobisisobutyronitrile (AIBN) initiator. Films were pretreated in dimethyl sulfoxide (DMSO) for 1 h at 140 degrees C before the polymerization reaction was carried out. Variations of graft yield with time, temperature, initiator, and monomer concentrations were investigated. The optimum temperature and polymerization time was found to be 70 degrees C and 4 h, respectively. Increasing monomer concentration from 0.28 to 1.22M and initiator concentration from 1.77 x 10(-3) to 4.20 x 10(-3)M enhanced the percent grafting. The effects of monomer and initiator diffusion on PET films were also studied. The overall activation energy for grafting was calculated as 11.5 kcal/mol. Further changes in properties of PET films such as water-absorption capacity and intrinsic viscosity mere determined. The grafted films were characterized with FTIR and scanning electron microscopy (SEM). (C) 1997 John Wiley & Sons, Inc.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.endpage1444en_US
dc.identifier.issn0021-8995
dc.identifier.issue7en_US
dc.identifier.scopus2-s2.0-85087250927
dc.identifier.scopusqualityQ2
dc.identifier.startpage1437en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12587/2784
dc.identifier.volume64en_US
dc.identifier.wosWOS:A1997WU62200023
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherJohn Wiley & Sons Incen_US
dc.relation.ispartofJournal Of Applied Polymer Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectgraft copolymerizationen_US
dc.subjectpoly(ethylene terephthalate) filmen_US
dc.subjectn-vinyl-2-pyrrolidone polymerizationen_US
dc.subjectswelling-assisted polymerizationen_US
dc.titleGraft copolymerization of n-vinyl-2-pyrrolidone on dimethyl sulfoxide pretreated poly(ethylene terephthalate) films using azobisisobutyronitrile initiatoren_US
dc.typeArticle

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