In situ monitoring of energy release in real time during gelation of acrylamide (AAm)

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dc.authoridPEKCAN, Onder/0000-0002-0082-8209
dc.authorwosidPEKCAN, Onder/Y-3158-2018
dc.contributor.authorPekcan, Ö
dc.contributor.authorKara, S
dc.date.accessioned2024-06-12T11:02:32Z
dc.date.available2024-06-12T11:02:32Z
dc.date.issued2001
dc.departmentTrakya Üniversitesien_US
dc.description.abstractTemperature variation and optical transmission was monitored in real time during the free radical crosslinking copolymerization (FCC) of acrylamide (AAm) and N,N-1-methylenebis(acrylamide) (Bis). Gelation experiments were initiated at various onset temperatures (T-on). During gelation the temperature rose then decreased to its initial value as the gelation time increased. That is explained with the energy release (Gelation activation energy) during the polymerization process. Gelation activation energies, DeltaE(G) were measured and found to be increased as the onset temperature, T-on was increased. It was observed that transmitted photon intensities, I-sc, decreased dramatically at the reaction time, which were attributed to the increase in scattered light intensity, I-sc during the formation of interconnected microgels in the system. Increase in I-sc was modeled using Rayleigh's equation where reaction time was found to be proportional to the volume of the microgels. It was observed that a number of microgels increased as the onset temperature, T-on was increased. (C) 2001 Elsevier Science Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/S0032-3861(01)00187-2
dc.identifier.endpage7417en_US
dc.identifier.issn0032-3861
dc.identifier.issue17en_US
dc.identifier.scopus2-s2.0-0342467921en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage7411en_US
dc.identifier.urihttps://doi.org/10.1016/S0032-3861(01)00187-2
dc.identifier.urihttps://hdl.handle.net/20.500.14551/21312
dc.identifier.volume42en_US
dc.identifier.wosWOS:000168797900020en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofPolymeren_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGelation Activation Energyen_US
dc.subjectMicrogelsen_US
dc.subjectPhoton Transmission Techniqueen_US
dc.subjectCross-Linker Contentsen_US
dc.subjectPolyacrylamide Gelsen_US
dc.subjectInhomogeneitiesen_US
dc.subjectPolymerizationen_US
dc.subjectMicrogelsen_US
dc.subjectHydrogelsen_US
dc.titleIn situ monitoring of energy release in real time during gelation of acrylamide (AAm)en_US
dc.typeArticleen_US

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