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Browsing by Subject "Polymer Science"

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1,3,5-Triazine-pentaethylenehexamine polymer for the adsorption of palladium (II) from chloride-containing solutions

Merve Sayin; Can, Mustafa; İmamoğlu, Mustafa; Arslan, Mustafa (ELSEVIER, 2015)

A triazine-hexamine (TAPEHA) polymer demonstrating high acid-resistance, good affinity to noble metals, and a high density of amine and triazine functional groups has been designed and synthesized. The obtained polymer was ...
A comparison of machine learning methods to predict rheometric properties of rubber compounds

Uruk, Zeynep; Kiraz, Alper; Deniz, Veli (2022)

In the rubber industry, rheometric properties are critical in defining processing times and temperatures. These parameters of rubber compounds are determined by time-consuming and expensive laboratory studies performed in ...
A novel Cu(II) Complex of Picolinate and 1,10-Phenanthroline: Preparation, Crystal Structure Determination, Spectroscopic Characterization and Nonlinear Optical Studies

Tamer, Ömer; Avcı, Davut; Atalay, Yusuf (SPRINGER, 2017)

A newly synthesized copper (II) complex of picolinic acid (also known as 2-pyridinecarboxylic acid) and 1,10-phenanthroline, [Cu(pic)(2)(phen)]center dot H2O, has been prepared, and its crystal structure has been fully ...
A novel polyurethanes from epoxidized soybean oil synthesized by ring opening with bifunctional compounds

Karadeniz, Kemal; Yakup Calokoglu; Mustafa Yasin Sen (SPRINGER, 2017)

The present work reports the first synthesis of biobased polyurethanes utilizing soy-based polyols that are synthesized by epoxy ring opening of epoxidized soybean oil with chemicals bearing two different functionalities. ...
A novel serine protease from strawberry (Fragaria ananassa): Purification and biochemical characterization

Alıcı, Esma Hande; Arabacı, Gülnur (ELSEVIER, 2018)

In this study, a protease enzyme was purified from strawberry by using Sepharose-4B-L-tyrosine-p-amino benzoic acid affinity chromatography. The molecular weight of pure protease was determined 65.8 kDa by SDS-PAGE. The ...
Adsorption of rhodium(III) ions onto poly(1,8-diaminonaphthalene) chelating polymer: Equilibrium, kinetic and thermodynamic study

Olgun, Uğursoy; Gülfen, Mustafa (ELSEVIER, 2013)

In the present work, poly(1,8-diaminonaphthalene) (poly(1,8-DAN)) was synthesized by the reaction of 1,8-diaminonaphthalene (1,8-DAN) with ammonium persulfate (APS) and then the equilibrium, kinetics and thermodynamics of ...
An Analysis of Residual Stresses in Thermal Barrier Coatings: A FE Performance Assessment

Taymaz, İmdat (WILEY-V C H VERLAG GMBH, 2009)

Internal combustion engines have been widely used for past 100 years. In the development of engine components a number of special techniques are used to compact the hostile operating environment, which usually includes ...
An Experimental and Numerical Investigation of Particle Morphology Effect on the Elasto-plastic Behavior of Particle-filled Composites

Cinar, Kenan; Parasiz, Sunal Ahmet; Akbulut, Mustafa; Eruslu, S. Ozmen (2022)

In this study, the influence of particle shapes on the elastoplastic response of composite materials is investigated both experimentally and computationally. Flake, spherical, irregular, and rod type glass particles are ...
Au (III) uptake by triazine polyamine polymers: Mechanism, kinetic and equilibrium studies

Can, Mustafa; Melek Dogan; İmamoğlu, Mustafa; Arslan, Mustafa (ELSEVIER SCIENCE BV, 2016)

Triazine-polyamine polymers were successfully synthesized and adsorption of the gold (III) ions from chloride containing solutions was carried out by comparing the effect of amine chain lengths in the polymers triazine-e ...
Cefditorene-Mediated Synthesis of Silver Nanoparticles and Its Catalytic Activity

Karaoğlu, Ebubekir (SPRINGER, 2013)

Ag(0) NPs were prepared by chemical reduction method in which silver nitrate was taken as the metal precursor and cefditorene as a reducing/capping agent and NaOH as the catalyst for reaction enhancement. The formation of ...
Characterization and immobilization of protease and lipase on chitin-starch material as a novel matrix

Wesen Adel Mehdi; Atheer Awad Mehde; Özacar, Mahmut; Zeynep Ozacar (ELSEVIER SCIENCE BV, 2018)

Protease and lipase were purified from sunflower seeds by frequent purification steps with molecular weights of 72.90 kDa and 27.50 kDa, respectively. The purified lipase and protease were immobilized on various carriers ...
Characterization of chitosan/polyethylenimine film layer as a novel anti-fog coating surface

Turk, Serbulent (2022)

Anti-fog surfaces have an important place in many areas of daily life. In this study, hybrid coatings of anti-fog chitosan (CHI) and polyethyleneimine (PI) were realized as an innovative film layer. CHI/PI hybrid coatings, ...
Coating of Al mould surfaces with polytetrafluoroethylene (PTFE), fluorinated ethylene propylene (FEP), perfluoroalkoxy (PFA) and ethylene-tetrafluoroethylene (ETFE)

Akıncı, Akın (WALTER DE GRUYTER GMBH, 2009)

Because of low cost, easily productivity and high thermal conductivity, aluminum (Al) moulds are preferred in the production of the polyurethane (PUR) parts. In this study, adhesion behavior and surface properties of coated ...
Comparison of tribological performance of PEEK, UHMWPE, glass fiber reinforced PTFE and PTFE reinforced PEI composite materials under dry and lubricated conditions

Ünal, Hüseyin; Mimaroğlu, Abdullah (WALTER DE GRUYTER GMBH, 2012)

In this study, the tribological performance of poly-ether-ketone (PEEK), ultrahigh molecular weight polyethylene (UHMWPE), glass fiber reinforced poly-tetra-fluoro-ethylene (PTFE) and PTFE reinforced poly-ether-imide (PEI) ...
Controlling the electrical characteristics of Au/n-Si structure with and without (biphenyl-CoPc) and (OHSubs-ZnPc) interfacial layers at room temperature

Nalan Baraz; Ibrahim Yucedag; Ahmet Demir; Gulcin Ersoez; Semsettin Altindal; Kandaz, Mehmet (WILEY, 2017)

In order to interpret well whether or not the organic or polymer interfacial layer is effective on performance of the conventional Au/n-Si (metal semiconductor [MS]) type Schottky barrier diodes (SBDs), in respect to ...
Covalent immobilization of trypsin onto modified magnetite nanoparticles and its application for casein digestion

Atacan, Keziban; Çakıroğlu, Bekir; Özacar, Mahmut (ELSEVIER SCIENCE BV, 2017)

The immobilization method consists of the production magnetite nanoparticles (Fe3O4) by solvothermal treatment of FeCl3 and sodium acetate (NaAc) in the presence of ethylene glycol. Subsequently, the surface of magnetite ...
Discovery of novel benzenesulfonamides incorporating 1,2,3-triazole scaffold as carbonic anhydrase I, II, IX, and XII inhibitors

Buza, Aida; Turkes, Cuneyt; Arslan, Mustafa; Demir, Yeliz; Dincer, Busra; Nixha, Arleta Rifati; Beydemir, Sukru (2023)

Sulfonamides are among the most promising potential inhibitors for carbonic anhydrases (CAs), which are pharmaceutically relevant targets for treating several disease conditions. Herein, a series of benzenesulfonamides ...
Effect of Calcination Temperature on the Structural and Optical Properties of (ZnO)(0.8) (ZrO2)(0.2) Nanoparticles

Alzahrani, Jamila S.; Midala, Ishaku Hamidu; Kamari, Halimah Mohammed; Al-Hada, Naif Mohammed; Tim, Chan Kar; Nidzam, Nazirul Nazrin Shahrol; Alrowaili, Z. A.; Al-Buriahi, M. S. (2022)

Calcination temperature has influenced the structural and optical features of nanocrystalline (ZnO)(0.8) (ZrO2)(0.2) series. Indeed, at present, general research in the approach to synthesis of (ZnO)(0.8) (ZrO2)(0.2) ...
Effect of particle size on microstructural and mechanical properties of UHMWPE-TiO2 composites produced by gelation and crystallization method

Çelebi Efe, Gözde Fatma; Altınsoy, İbrahim; Türk, Serbülent; Bindal, Cuma; A. Hikmet Ucisik (WILEY, 2019)

In this study, Ultra-high-molecular-weight polyethylene (UHMWPE) in 0.5 wt % concentration-0.5, 1, and 2 wt % nanosized and micron-sized TiO2 composites were produced via gelation/crystallization method in decalin + ...
Effectiveness of 5-Fluorouracil and gemcitabine hydrochloride loaded iron-based chitosan-coated MIL-100 composite as an advanced, biocompatible, pH-sensitive and smart drug delivery system on breast cancer therapy

Resen, Ali K.; Atiroglu, Atheer; Atiroglu, Vesen; Eskiler, Gamze Guney; Aziz, Ismail H.; Kaleli, Suleyman; Ozacar, Mahmut (2022)

This study was planned to evolve the bioavailability and therapeutic efficiency of Gemcitabine (GEM) and 5Fluorouracil with decreased side effects using MIL-100 nano-composite as carrier. Impregnation approach was used for ...