Fen Bilimleri Enstitüsü: Recent submissions

  • Photocatalytic activities of ZnO-based materials: effect of rare-earth metal ion loading 
    Akalın, Şerife. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    In this study, pure and rare earth metal loaded ZnO photocatalytic materials have been prepared by coprecipitation method using the precursors of zinc and metal ions. These materials have been characterized by using scanning ...
  • Preparation of silica nanoparticles in reversed micellar sysytems 
    Dağlı, Ayşegül. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    When surfactants are in apolar media, they form reverse micelles by encapsulating a water droplet inside their hydrophilic head groups. The hydrophilic core of the water droplet which is dispersed in the oily apolar ...
  • Dendrimer assembly via non-covalent interactions 
    Karayel, Ali Hikmet. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2009., 2009.)
    Dendrimers are monodisperse and highly branched macromolecules which are built around a core. The segments that combine to form a dendrimer are called dendrons. The synthesis of dendrimers can be undertaken in a manner ...
  • Synthesis and polymerization of new phosphonated monomers for dental applications 
    Yeniad, Bahar. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    Three novel phosphonated monomethacrylate monomers have been synthesized and studied for their potential use as monofunctional reactive diluents in dental materials. The monomers are based on glycidyl methacrylate (GMA) ...
  • A DFT study of the four-center HF eliminations from fluoroethylenes: transition state and charge analysis along the IRC 
    Önlü, Serli. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    The unimolecular, ground-state, four-center hydrogen fluoride elimination from vinyl fluoride, 1,1-difluoroethylene, trans-1,2-difluoroethylene, and trifluoroethylene reactions were investigated in this thesis. Hartree-Fock ...
  • Synthesis of dendrons with bone targeting moieties 
    Çakır, Pınar. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    Macromolecules containing multifunctional groups are promising candidates for drug delivery systems because a multivalent interaction between biological receptor and a targeting molecule increases the binding strength. ...
  • Polymerization of plant oils with p-dinitrosobenzene 
    Mutlu, Hatice. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    In this study, tacky, black coloured thermoset polymers were synthesized from polymerization of the soybean oil (SO) with polymeric p-dinitrosobenzene (PDNB) via an ene reaction. The crosslinking agent, polymeric ...
  • Polymeric nanocomposites from renewable resources 
    Altuntaş, Esra. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    Objective of this study was to synthesize renewable polymeric nanocomposites by using an in-situ polymerization method and characterize them in terms of thermal and mechanical properties as well as morphology. Firstly, ...
  • High performance polypropylene nanocomposites 
    Bağcıoğlu, Cüneyt. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    In recent years, polymeric nanocomposites received large attention due to their superior mechanical, thermal, and optical properties as compared to micro-composites and neat polymers. Therefore, the main objective of this ...
  • A parametric study of laboratory scale manifacture of sodiumallysulfonate 
    Börekcioğlu, Pınar. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Scieence and Engineering, 1986., 1986.)
    The main aim of this work involyes the manufacture of sodium allylsulfonate from allylbromide and sodium sulfite by using laboratory scale testing of the commonly used industrial batch method(1). Yield of sodium allylsulfonate ...
  • Synthesis and photopolymerizations of new dental monomers from o-hydroxyaryl phosphonates 
    Şahin, Görçin Görkem. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    New phosphonate, phosphonic and carboxylic acid containing monomers were synthesized from o-hydroxyaryl phosphonates and dimethyl 2-hydroxyethyl phosphonate for use in dental adhesives and composites. First set of monomers ...
  • Diels-alder "click" cycloadditions: a tool for synthesis of macromolecules 
    Köse, Meliha Merve. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    Diels-Alder reaction is a well known [4+2] cycloaddition reaction between a diene and a dienophile. The fact that Diels-Alder reaction takes place even at room temperature without use of any other reagents and catalysts ...
  • Synthesis of novel alkyl alfa-(hydroxymethyl)acrylate (RHMA) ether dimer derived polymers and their potential use in powder coating 
    Özkal, Erhan. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    One of the newest and most effective technologies in coating industry is powder coating. Powder coating has been applied from wood to steel surfaces. Among many components, resin has the highest percentage in the mixture ...
  • Synthesis and properties of weatherable polymers from hydroxybenzophenones 
    Dutağacı, Berçem. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2008., 2008.)
    In this thesis, we have synthesized polymers with UV absorbing moieties in their structure which give them resistance to the sunshine and thus, make them suitable for outdoors applications. These moieties were chosen such ...
  • Transition metal complexes of N, N-BIS (dialkylphosphinomethyl) aminomethane derivatives: a DFT study 
    Köseoğlu, Ahmet. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    Aminomethylphosphine complexes are used as catalysts in various organic reactions which involve heterogeneous and homogenous processes. Some examples in which aminomethylphosphine complexes are used as catalysts are ...
  • Photocataltic propertirs of zeolite-based materials for gegradation of methyl orange 
    Yılmaz, Özge. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    Novel photocatalytic materials have been prepared by incorporation of TiO2 on ZSM-5 surface and incorporation of Y2O3, La2O3 and Ce2O3 on TiO2-ZSM-5 matrix. These materials have been characterized using scanning electron ...
  • Synthesis of telechelic aliphatic cyclopolymers by controlled radical polymerization 
    Can, Aydın. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    Powder coating is a growing industry which has many application areas for many surfaces. The coating mixture has many different ingredients. The highest percentage of a powder coating mixture in terms of both volume and ...
  • Modelling pyrazine and tetrazine complex ions of iron by DFT 
    Ünan, Pınar. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    In coordination chemistry, mixed valency is widespread, from superconductors to minerals, magnetic molecular clusters and even enzymes. Mixed valency occurs when the same chemical element is found in two different oxidation ...
  • Heavy metal, surfactant, ligand interactions in soil remediation 
    Tunç, Hanife. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    In this study, heavy metal-surfactant-ligand interactions and the effects of anionic and nonionic surfactants alone, two ligands alone, and combinations of these surfactants and ligands in the removal of heavy metals from ...
  • Modelling the competing pathways in the free radical polymerization of acrylates 
    İnçmen, Mihriban. (Thesis (M.S.)-Bogazici University. Institute for Graduate Studies in Science and Engineering, 2007., 2007.)
    The size of the a-substituent is expected to play a role in the propagation reaction in free radical polymerization. The possibility of the approach of the propagating radical to the monomer can be reduced due to the ...