Yazar "Kaya Aktaş, Demet" için listeleme
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Comparision of critical parameters of polymerization and gelation processes: A fast transient fluorescence study
Kaya Aktaş, Demet; Pekcan, Mehmet Önder (World Scientific Publ Co Pte Ltd, 2005-03-10)The fast transient fluorescence technique was used to study free-radical polymerization and crosslinking copolymerization of styrene. Ethylene glycol dimethacrylate and Pyrene were used as crosslinking agent and fluorescence ... -
Determination of pre-gelation and post-gelation activation energies during free radical crosslinking copolymerization
Kaya Aktaş, Demet; Pekcan, Mehmet Önder (Taylor & Francis Ltd, 2005)Steady-state fluorescence (SSF) and dilatoraetric techniques were used to study the free-radical crosslinking copolymerization (FCC) of styrene (S) and divinylbenzene (DVB) in bulk. The gel points (t g) were recorded by ... -
Molecular alignment during gel formation from methyl methacrylate: An excimer fluorescence study
Kaya Aktaş, Demet; Erdoğan, Matem; Pekcan, Mehmet Önder (Taylor & Francis Ltd, 2005-05)Glass transition during bulk polymerization was studied in free-radical cross-linking copolymerization (FCC) of methyl methacrylate (MMA) using the steady-state fluorescence (SSF) technique. Naphthalene (N) was used as a ... -
Study on critical behaviour in N-isopropyl acrylamide gels by using fluorescence technique
Kaya Aktaş, Demet; Pekcan, Mehmet Önder (Taylor & Francis Group, 2006-11)The steady state fluorescence (SSF) technique was used to study the sol-gel transition for the solution free radical crosslinking copolymerization of N-isopropyl acrylamide (NIPA), with N,N'-methylenebis (acrylamide) (BIS) ... -
Study on swelling of hydrogels (PAAm) at various temperatures by using fluorescence technique
Kaya Aktaş, Demet; Evingür, Gülşen Akın; Pekcan, Mehmet Önder (Springer US, 2007-10)Steady-state fluorescence (SSF) technique was employed for studying swelling of polyacrylamide (PAAm) hydrogels. Disc-shaped gels were prepared by free-radical crosslinking copolymerization of acrylamide (AAm) with N, N'- ... -
Universal behaviour of gel formation from acrylamide-carrageenan mixture around the gel point: A fluorescence study
Kaya Aktaş, Demet; Evingür, Gülşen Akın; Pekcan, Mehmet Önder (Taylor & Francis Group, 2006-08)The steady state fluorescence (SSF) technique was used to study the sol-gel transition, for the solution free radical crosslinking copolymerization of acrylamide (AAm) with various carrageenan content. N, N'- methylenebis ... -
Universal behaviour of glass transition exponents in various polymeric systems
Pekcan, Mehmet Önder; Kaya Aktaş, Demet (VSP BV, Brill Academic Publishers, 2005)The fast transient fluorescence (FTRF) technique was used to study the critical exponents during glass transition in free-radical cross-linking copolymerization (FCC). Methyl methacrylate (MMA), ethyl methacrylate (EMA) ...