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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 ...
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Critical phenomenon during photoinitiated gelation at different temperatures: A Photo-DSC study 

Dogruyol, Zekeriya; Arsu, Nergis; Dogruyol, Sevnur Keskin; Pekcan, Önder (Elsevier Science, 2011)
The behaviour of photoinitiated radical polymerization of an 80 wt% epoxy diacrylate (EA) and 20 wt% tripropyleneglycoldiacrylate (TPGDA) mixture with 2-mercaptothioxanthone (TX-SH) photoinitiator was studied at different ...
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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 ...
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Electrical and optical percolations in PMMA/GNP composite films 

Arda, Ertan; Mergen, Omer Bahadir; Pekcan, Önder (Taylor & Francis Ltd, 2018)
Effects of graphene nanoplatelet (GNP) addition on the electrical conductivity and optical absorbance of poly(methyl methacrylate)/graphene nanoplatelet (PMMA/GNP) composite films were studied. Optical absorbance and two ...
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Gelation of PAAm-PVP composites: A fluorescence study 

Evingür, Gülşen Akin; Kaygusuz, Hakan; Erim, F. Bedia; Pekcan, Önder (World Scientific, 2014)
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) ...
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Electrical optical and fluorescence percolations in P(VAc-co-BuA)/MWCNT composite films 

Arda, Ertan; Kara, Selim; Pekcan, Önder (Taylor & Francis Ltd, 2013)
Effects of multiwall carbon nanotube (MWCNT) addition on the electrical conductivities optical transparencies and fluorescence emissions of poly(vinyl acetate-co-butyl acrylate) (P(VAc-co-BuA))/MWCNT composite films were ...
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Percolation and Film Formation Behaviors of MWNT/PS Nanocomposites 

Uğur, Şaziye; Yargı, Önder; Pekcan, Önder (Elsevier Science Bv, 2011)
This study involves the investigation of film formation and electrical conductivity properties of polystrene (PS) latex/multi-walled Carbon nanotube (MWNT) composites. Films prepared from PS/MWNT mixtures with different ...
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Conductivity percolation of carbon nanotubes (CNT) in polystyrene (PS) latex film 

Uğur, Şaziye; Yargı, Önder; Pekcan, Önder (Canadian Science Publishing Nrc Research Press, 2010)
In this study the effect of multiwalled carbon nanotubes (MWNT) on film formation behaviour and electrical conductivity properties of polystrene (PS) latex film was investigated by using the photon transmission technique ...
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GELATION MECHANISMS 

Pekcan, Önder; Kara, Selim (World Scientific Publ Co Pte Ltd, 2012)
In 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 ...
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Steady state fluorescence technique for studying phase transitions in PAAm-PNIPA mixture 

Evingür, Gülşen Akın; Aktaş, Demet Kaya; Pekcan, Önder (Taylor & Francis, 2009)
The steady state fluorescence (SSF) technique was used to study the sol-gel phase transition during free radical crosslinking copolymerisation of various amounts of acrylamide (AAm) and N-isopropylacrylamide (NIPA) mixtures. ...
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AuthorPekcan, Onder (11)Evingür, Gülşen Akin (3)Uğur, Şaziye (3)Aktas, Demet Kaya (2)Arda, Ertan (2)Kara, Selim (2)Yargı, Önder (2)Aktaş, Demet Kaya (1)Arsu, Nergis (1)Dogruyol, Sevnur Keskin (1)... View MoreSubject
Percolation (12)
Fluorescence (6)Conductivity (4)Critical phenomena (4)Critical exponents (3)Acrylamide (2)Gelation (2)Hydrogel (2)Latex (2)Multiwalled carbon nanotubes (2)... View MoreDate Issued2009 (4)2010 (2)2011 (2)2012 (1)2013 (1)2014 (1)2018 (1)Has File(s)true (9)false (3)

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