Effect of molecular weight on latex film formation: Photon transmission study

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dc.authoridPEKCAN, Onder/0000-0002-0082-8209
dc.authorwosidPEKCAN, Onder/Y-3158-2018
dc.contributor.authorPekcan, O
dc.contributor.authorArda, E
dc.date.accessioned2024-06-12T11:07:30Z
dc.date.available2024-06-12T11:07:30Z
dc.date.issued1998
dc.departmentTrakya Üniversitesien_US
dc.description.abstractA UV-visible (UW) technique was used to monitor the evolution of transparency during film formation from hard latex particles. Two different latex films were prepared from particles with high and lon molecular weight (HM and LM) poly(methyl methacrylate) (PMMA) separately and annealed at elevated temperatures in various time intervals above the glass transition temperature (T-g). In both films, a continuous increase in the transmitted photon intensity (I-rf) was observed above 160 degrees C as the annealing temperature was increased. However, the reflected photon intensity (I-rf) first decreased and then increased by showing a minimum in the same temperature range as the annealing temperature was increased. The increase in the transmitted photon intensity (I-tr) is attributed to increase in the crossing density at the junction surface. The activation energies for back-and-forth motion (Delta E-tr) were measured and found to be around 35 and 25 kcal/mol for the reptating polymer chain across the junction surface in the LM and HM films, respectively. The decrease in I-rf was explained by the void-closure mechanism, and the increase in the I-rf above 160 degrees C was again attributed to the increase in the crossing density at thejunction surface. Back-and-forth activation energies (Delta E-rf) were measured to be around 47 and 18 kcal/mol and the void-closure constants (B) were found to be around 24 x 10(3) and 12 x 10(3) K for the LM and HM film samples, respectively. (C) 1998 John Wiley & Sons, Inc.en_US
dc.identifier.doi10.1002/(SICI)1097-4628(19981010)70:2<339
dc.identifier.endpage351en_US
dc.identifier.issn0021-8995
dc.identifier.issue2en_US
dc.identifier.scopus2-s2.0-85088080484en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage339en_US
dc.identifier.urihttps://doi.org/10.1002/(SICI)1097-4628(19981010)70:2<339
dc.identifier.urihttps://hdl.handle.net/20.500.14551/22070
dc.identifier.volume70en_US
dc.identifier.wosWOS:000075697300014en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWiley-Blackwellen_US
dc.relation.ispartofJournal Of Applied Polymer Scienceen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectLatexen_US
dc.subjectFilmen_US
dc.subjectMolecular Weighten_US
dc.subjectBack-Forth Motionen_US
dc.subjectPolymer-Polymer Interfaceen_US
dc.subjectEnergy-Transferen_US
dc.subjectPoly(Methyl Methacrylate)en_US
dc.subjectAcrylic Laticesen_US
dc.subjectParticlesen_US
dc.subjectDiffusionen_US
dc.subjectFluorescenceen_US
dc.subjectInterdiffusionen_US
dc.subjectEllipsometryen_US
dc.subjectColloidsen_US
dc.titleEffect of molecular weight on latex film formation: Photon transmission studyen_US
dc.typeArticleen_US

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