Browsing by Author "Aktas, Demet Kaya"
Now showing items 1-4 of 4
-
Critical Exponents of Gelation and Conductivity in Polyacrylamide Gels Doped by Multiwalled Carbon Nanotubes
Aktas, Demet Kaya; Evingür, Gülşen Akin; Pekcan, Önder (Taylor & Francis Ltd, 2010)Polyacrylamide (PAM) doped by multiwalled carbon nanotube (MWNT) gels were prepared with different amounts of MWNTs varying in the range between 0.1 and 15 wt%. The PAM-MWNT composite gels were characterized by the steady ... -
A Fluorescence Study on Swelling of Hydrogels (PAAm) at Various Cross-Linker Contents
Aktas, Demet Kaya; Evingür, Gülşen Akin; Pekcan, Önder (Wiley, 2009)Disk-shaped acrylamide (AAm) gels were prepared from AAm with various NN'-methylenebisacrylamide (Bis) contents as cross-linker in the presence of ammonium persulfate as an initiator by free-radical cross-linking ... -
In situ steady state fluorescence (SSF) technique to study drying of PAAm hydrogels made of various cross-linker contents
Evingür, Gülşen Akın; Aktas, Demet Kaya; Pekcan, Önder (Elsevier Science, 2009)Drying experiments of polyacrylamide (PAAm) gels were performed using steady-state fluorescence (SSF) spectrometer. Pyranine (P) was introduced as a fluorescence probe and intensity of P from various crosslinker content ... -
Phase Transitions in Pure and Hybrid Hydrogels: A Fluorescence Study
Aktas, Demet Kaya; Evingür, Gülşen Akin; Pekcan, Önder (Wiley, 2009)Recent observations on phase transitions around the critical point showed that the critical exponents differed drastically from percolation results and classical results for pure hydrogel systems depending on monomer ...