Manufacturing a new protective polyethylene based film containing zeolites for packaging of food

Dirim (Aktaş), Safiye Nur


Charity programmes : representation of povertry in Turkish television
Çamur, Aysel; Erdoğan, Necmi; Department of Political Science and Public Administration (2004)
This thesis analyses the representation of poverty in the charity programmes broadcast on Turkish television, namely Deniz Feneri, Kimse Yok mu, Yarinlar Umut Olsun and Yolcu. It examines the continuities, discontinuities and breaks in the representation of poor with reference to Turkish cinema, novel and media. Critical discourse analysis of the charity programmes indicates that poverty is legitimised and naturalised, being made no reference to social, economic and political context of poverty. The constru...
Enhancing electrochromic properties of polypyrrole by silsesquioxane nanocages
Ak, Metin; Gacal Özcan, Burçin; Kışkan, Barış; Yağcı, Yusuf; Toppare, Levent Kamil (Elsevier BV, 2008-04-29)
A new monomer, octa(thiophenephenyl)silsesquioxane (OThiophenePS) was synthesized via click chemistry. The chemical structure of OThiophenePS was characterized by nuclear magnetic resonance (H-1 NMR) and Fourier transform infrared (FT-IR) spectroscopies. Electrochemical polymerization of pyrrole with OThiophenePS was performed resulting in polypyrrole-attached, polyhedral oligomeric silsesquioxane (OPS-PPy). The spectroelectrochemical studies show that the electrochromic properties of (OPS-PPy) are superior...
Fabrication of a Novel Polymeric Scaffold for Amperometric Laccase Biosensor
Soylemez, Saniye; Bekmezci, Aybüke; Göker, Seza; Toppare, Levent Kamil (Wiley, 2019-11-14)
Present work displays the preparation of an electrochemical biosensor using a conjugated polymer and laccase enzyme for catechol quantification in samples. The biosensing system is based on an enzyme immobilization on polymer modified graphite transducer surface. For that purpose, a random conjugated polymer, thienothiophene-benzoxadiazole-alt-benzodithiophene (BOTT), was coated onto a graphite electrode surface via drop casting method followed by immobilization of a biomolecule (laccase) for sensing experi...
Preparation and characterization of recycled polypropylene based nanocomposites
Cengiz, Filiz; Yılmazer, Ülkü; Department of Chemical Engineering (2008)
The aim of this study was to improve the mechanical properties of a recycled grade polypropylene. Polymer blends and nanocomposites were prepared by melt compounding method in a twin screw extruder. Cloisite® 15A, Cloisite® 25A and Cloisite® 30B were used as organoclays, and ethylene-methyl acrylate-glycidyl methacrylate (E-MA-GMA) and maleic anhydride grafted polypropylene (PP-MAH) were used as compatibilizers. The effects of additive concentrations, types of organoclays and compatibilizers, processing con...
Preparation and characterization of nanocomposites with a thermoplastic matrix and spherical reinforcement
Ersu, Dilek; Yılmazer, Ülkü; Department of Chemical Engineering (2006)
The aim of this study is to investigate the effects of compatibilizers, fumed silica and mixing order of components on morphological, thermal, mechanical and flow properties of LDPE/Fumed silica nanocomposites. As compatibilizer(Co); ethylene/n-butyl acrylate/maleic anhydride (E-nBA-MAH), ethylene/glycidyl methacrylate (E-GMA) and ethylene/methyl acrylate/glycidyl methacrylate (E-MA-GMA) Lotader® resins; as silica Cab-o-sil® M5 fumed silica were used. All samples were prepared by means of a lab scale co-rot...
Citation Formats
S. N. Dirim (Aktaş), “Manufacturing a new protective polyethylene based film containing zeolites for packaging of food,” Ph.D. - Doctoral Program, Middle East Technical University, 2000.