dc.contributor.author | Evingür, Gülşen Akın | |
dc.contributor.author | Kaygusuz, Hakan | |
dc.contributor.author | Erim, F. Bedia | |
dc.contributor.author | Pekcan, Önder | |
dc.date.accessioned | 2021-06-05T19:57:15Z | |
dc.date.available | 2021-06-05T19:57:15Z | |
dc.date.issued | 2014 | |
dc.identifier.issn | 0217-9792 | |
dc.identifier.issn | 1793-6578 | |
dc.identifier.uri | https://doi.org/10.1142/S0217979214501227 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12960/464 | |
dc.description | 0000-0002-0082-8209 | en_US |
dc.description | 0000-0001-9406-6681 | en_US |
dc.description | 0000-0001-9336-1902 | en_US |
dc.description | WOS:000337807000002 | en_US |
dc.description.abstract | Hybrid hydrogels are a new class of composite materials. Polyacrylamide (PAAm) hydrogels are mainly produced by free radical crosslinking copolymerization (FCC) of AAm in the presence of N, N'-methylene bis (acrylamide) (BIS) as the crosslinker. Pyranine doped PAAm-poly (N-vinyl pyrrolidone) (PVP) composite were prepared with different amounts of PVP varying in the range between 0.0015 and 0.1 gr. It was observed that pyranine molecules as a fluoroprobe bind to AAm and PVP chains upon the initiation of the polymerization, causing the fluorescence spectra of the bonded pyranines shift to the shorter wavelengths. The sol-gel phase transition and its universality were monitored and tested as a function of PVP contents. Observations around the critical point show that the gel fraction exponent, beta, agreed with the percolation result for below 0.025 gr PVP contents. However, classical result was observed above 0.0125 gr PVP content. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | World Scientific Publ Co Pte Ltd | en_US |
dc.relation.ispartof | International Journal on Modern Physics B | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Acrylamide | en_US |
dc.subject | Poly (N-Vinyl Pyrolidone) | en_US |
dc.subject | Composite Gel | en_US |
dc.subject | Percolation | en_US |
dc.subject | Critical Phenomena | en_US |
dc.subject | Fluorescence | en_US |
dc.title | Gelation of PAAm-PVP composites: A fluorescence study | en_US |
dc.type | article | en_US |
dc.department | Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümü | en_US |
dc.department-temp | [Evingur, Gulsen Akin] Piri Reis Univ, Fac Sci & Letters, TR-34940 Tuzla Istanbul, Turkey; [Kaygusuz, Hakan; Erim, F. Bedia] Istanbul Tech Univ, Fac Sci & Letters, TR-34469 Maslak, Turkey; [Pekcan, Onder] Kadir Has Univ, Fac Engn & Nat Sci, TR-34083 cibali Istanbul, Turkey | en_US |
dc.contributor.institutionauthor | Evingür, Gülşen Akın | |
dc.identifier.doi | 10.1142/S0217979214501227 | |
dc.identifier.volume | 28 | en_US |
dc.identifier.issue | 20 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |