GELATION MECHANISMS

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dc.authoridPEKCAN, Onder/0000-0002-0082-8209
dc.authorwosidPEKCAN, Onder/Y-3158-2018
dc.contributor.authorPekcan, Onder
dc.contributor.authorKara, Selim
dc.date.accessioned2024-06-12T11:02:32Z
dc.date.available2024-06-12T11:02:32Z
dc.date.issued2012
dc.departmentTrakya Üniversitesien_US
dc.description.abstractIn this paper, we survey the gelation mechanisms for various polymeric systems which are classified by the type and the strength of the cross-linkages. These are the irreversible gels that are cross-linked chemically by covalent bonds and the reversible gels that are cross-linked physically by hydrogen or ionic bonds and by the physical entanglement of polymer chains. Some of the natural polymer gels fall into the class of physical gels, among which the red algae that has attracted attention for various applications is discussed in detail. Various composite gels, formed from mixture of physical and chemical gels are also discussed in the last section of the article. Theoretical models describe the gelation as a process of random linking of subunits to larger and larger molecules by formation of an infinite network, where no matter what type of objects are linked, there is always a critical gel point at which the system behaves neither as a liquid nor as a solid on any length scale. The Flory-Stockmayer theory and percolation theory provide bases for modeling this sol-gel phase transition. The experimental techniques for measuring the critical exponents for sol-gel phase transitions in different polymeric systems are introduced and the validation of various theoretical predictions are surveyed.en_US
dc.identifier.doi10.1142/S0217984912300190
dc.identifier.issn0217-9849
dc.identifier.issue27en_US
dc.identifier.scopus2-s2.0-84866852879en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.urihttps://doi.org/10.1142/S0217984912300190
dc.identifier.urihttps://hdl.handle.net/20.500.14551/21314
dc.identifier.volume26en_US
dc.identifier.wosWOS:000309188300001en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWorld Scientific Publ Co Pte Ltden_US
dc.relation.ispartofModern Physics Letters Ben_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectGelationen_US
dc.subjectPercolationen_US
dc.subjectChemical Gelsen_US
dc.subjectPhysical Gelsen_US
dc.subjectComposite Gelsen_US
dc.subjectSol-Gel Transitionen_US
dc.subjectSemiinterpenetrating Polymer Networksen_US
dc.subjectCross-Linking Copolymerizationen_US
dc.subjectMolecular-Size Distributionen_US
dc.subjectThermal Phase-Transitionsen_US
dc.subjectCarrageenan-Water Systemen_US
dc.subjectIn-Situ Releaseen_US
dc.subjectKappa-Carrageenanen_US
dc.subjectCritical Exponentsen_US
dc.subjectFluorescence Techniqueen_US
dc.titleGELATION MECHANISMSen_US
dc.typeReview Articleen_US

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