Fen Bilimleri Enstitüsü: Recent submissions

  • Fabrication of biopolymeric nanogels using supramolecular interactions 
    İpek, Hazal. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    In this study, biodegradable nanogels were fabricated using supramolecular host-guest type interactions between a βCD-grafted dextran polymer and disulfide-containing bis-adamantane based linkers. These nanogels were ...
  • Synthesis and characterization of transition metal doped solid oxide fuel cell cathodes 
    Kısa, Ayşenur Eslem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Fuel cells have become of great interest as a potential economical and clean candidate for alternative and environmental friendly power generation services. There are several types of fuel cells with large differences in ...
  • Preparation of multicomponent composites from sustainable natural materials and analyses of their dye adsorption properties 
    Gençer, Özge. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    In this study, the preparation and dye adsorption/absorption properties of novel composite hydrogels with multiple components are described. Components were selected according to certain basic criteria: Optimization of ...
  • Photohysical and photochemical studies novel thioxanthone-functionalized methacrylates 
    Eren, Tuğçe Nur. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Five novel thioxanthone (TX) based monomeric photoinitiators (PIs) for free radical polymerization of acrylates were synthesized from reactions of tert-butyl α-bromomethacrylate with 2-hydroxy thioxanthone (TX1) and ...
  • Radical polymerization of dimethylacrylamide (DMAM): a computational study 
    Kura, Berkehan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Since free radicals are highly reactive species, free radical polymerization proceeds fast and high molecular weight polymers are synthesized in a short period of time. This fact makes free radical polymerzation favored ...
  • Investigation of interaction energies of topoisomerase I inhibitor: topotecan 
    Dikmenli, Ayşe Kumru. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Topoisomerases (Top1) cut one or both strands of DNA and therefore bring changes in the topology of DNA. They are ubiquitous enzymes which are essential for the cellular regulation of DNA supercoiling caused by processes ...
  • Reactions of dichlorozirconocene with nitrogen containing heterocycles and related compounds 
    Ünal, A. Özge Akdeniz. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    In this study the reaction of 16 e- system, dichlorobiscyclopentadienyl- zirconium(IV) with N-containing, S-containing and thioamide containing ligands were studied. In the presence of a non-coordinating solvent, CH2Cl2, ...
  • Screening of various polyethylene terephthalate chain extenders in a melt polymerization set-up 
    Özdemir, Ayşenur. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Polyethylene terephthalate (PET) is one of the most important and common polyester in the industry. It is produced by the reaction of ethylene glycol (EG) with terephthalic acid (TPA) or dimethyl terephthalate (DMT). The ...
  • Synthesis and characterization of precursors for quinoxaline cyclization 
    Aykanat, Aylin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Quinoxaline compounds are essential nitrogen containing heterocyclic compounds of various biological properties and have several pharmaceutical applications. In this work, several precursors to be used in quinoxaline ...
  • Novel monomeric and polymeric photoinitiators with TYPE II and ( TYPE I-OR-H-DONOR) side chains 
    Köylü, Fulya. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    A recent trend in the effort to develop high performance photoinitiator (PI) systems for photopolymerization is to consider polymerizable or polymeric ones. These have some advantages such as high reactivity, low volatility ...
  • Synthesis and extension of diallyl telechelic polyisobutylenes to higher molecular weights and networks by thiol-ene chemistry 
    Kurnaz, Elif. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    In this research, the focus is on the use of the thiol-ene click chemistry for the preparation of high molecular weight linear rubbery or crosslinked polyisobutylenes from lower molecular weight liquid polyisobutylene ...
  • Synthesis of networks and interenetrating networks of maleated castor oil and epoxy resins 
    Altuncu, Merve Seçkin. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    In this study, castor oil is reacted with maleic anhydride to give maleated castor oil (COMA) which can be used as a biobased epoxy curing agent to enhance the problems of brittle structure of epoxy resins and can undergo ...
  • Designing and analysis of sofc operating with syngas and coal gasification integrated system 
    Şekerci, Can Gökhun. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Solid oxide fuel cells (SOFCs) are electrochemical conversion devices transforming chemical energy of fuel into electric current with high e ciency. SOFCs are composed of three main parts: anode, cathode, and electrolyte. ...
  • Synthesis and thermal characterization of tri-substituted triazines 
    Baykal, Duygu. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Cyanuric chloride has huge application areas in chemical industries on drug, agriculture, polymer, dye and leather because of fact that cyanuric chloride is commercially cheap. In addition to this, its substitution reaction ...
  • Conformational equilibria of alpha-substituted cyclohexanones with different chalcogens (O, S, Se) 
    Duran, Emine Sevim Dilek. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    The conformational analysis of alpha-substituted cyclohexanones with different chalcogens (OH, SH, SeH, OC6H5, SC6H5, SeC6H5) has been studied in gas phase with semi-empirical PM3 and ab initio HF/6-31G*. The para F, Cl, ...
  • A study on halloysite reinforced chitosan hydrogel nanocomposites: synthesis, characterization & DYE adsorption properties 
    Palantöken, Sinem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    In this project, synthesis and characterization of a series of natural silica nanotube reinforced chitosan nanocomposite hydrogels are done. Nanocomposite hydrogels were prepared through physical crosslinking of chitosan ...
  • Drug encapsulated polymeric nanoparticles for targeting cancer cells 
    Genç, Sesil. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Targeted drug delivery systems have gained much attention in recent years due to the fact that it offers useful solutions to the problems concerning chemotherapy drugs. The main aim in targeted drug delivery is to transport ...
  • Montmorillonite and modified montmorillonite supported ZnO catalysts 
    Pekcan, Ayşe Hazal. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    The purpose of this study is to prepare ZnO supported montmorillonite based catalysts by using co-precipitation technique. The photocatalytic activities of the as-prepared catalysts are studied for degradation/decolorization ...
  • Synthesis of a novel benzophenone derived UV absorber acrylate monomer 
    Bıçak, Tuğrul Cem. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Since the destructive effects of sunlight have been discovered, UV protection of materials have gained more importance. The weathering resistance of organic materials can be increased by coating their surface with UV ...
  • Development of novel electrolyte and anode materials for intermediate temperature solid oxide fuel cell 
    Yaraşan, Özge. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 2015., 2015.)
    Solid oxide fuel cells (SOFC) are energy conversion devices by transforming the chemical energy of fuel into more usable electrical energy at high temperatures. Their higher efficiency and fuel flexibility make them a ...