Work Experience

  • Todate 2013

    Yrd. Doç. Dr.

    Yakın Doğu Üniversitesi, Eczacılık Fakültesi/ Farmasötik Kimya Anabilim Dalı

  • 2013 2011

    Öğr.Gör.Dr.

    Yakın Doğu Üniversitesi, Eczacılık Fakültesi/ Farmasötik Kimya Anabilim Dalı

Education & Training

  • Ph.D. 2011

    Organik Kimya / Polimer Kimyası

    Marmara Üniversitesi

  • Master2008

    Organik Kimya / Polimer Kimyası

    Marmara Üniversitesi

  • Bachelor2006

    Kimya

    Marmara Üniversitesi

Honors, Awards and Grants

Research Projects

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    UV-Curable Boron Containing Hybrid Coatings

    UV-Curable Boron Containing Hybrid Coatings. BOREN-2009-Ç0210. Y. Mülazim, M.V. Kahraman, N.K. Apohan, A. Bayülken ve A. Güngör (Project Budget 98.000 TL)

    A series of ultraviolet (UV)-curable, boron- containing hybrid coatings were prepared by an anhy- drous sol–gel technique from a mixture of an acrylated bisphenol A based epoxy resin, methacryloxymethyl trie- thoxysilane, and boric acid. The use of boric acid allowed the hydrolysis and condensation of hybrid silicon alkox- ides without the further addition of water or a catalyst. The chemical structure of the boron-containing hybrid coatings was characterized with Fourier transform infra- red, real-time infrared, and 29Si cross-polarization/magic- angle spinning NMR techniques. UV-curable coatings were applied to polycarbonate and Plexiglas substrates. The physical and mechanical properties of the UV-cured coatings (e.g., pendulum hardness, pencil hardness, contact angle, gel content, methyl ethyl ketone rubbing test, tensile test, abrasion resistance, chemical resistance, neutron absorption, and limiting oxygen index) were examined. The hybrid coatings showed a significant enhancement in their radiation-shielding properties. The thermal behavior of the coatings was also evaluated. It was observed that the thermal stability of the coatings mainly depended on their boron and silicate contents. The results of all analyses of the free films and coatings were examined. 10B containing organic–inorganic hybrid coat- ing material based on a UV-curable formulation was pre- pared via anhydrous sol–gel technique. UV curable coatings were applied on Plexiglas (PMMA) substrates. The molecular structure of the coating material was ana- lyzed by ATR-FTIR spectroscopy technique. The charac- terization of the UV-curable coating was evaluated by various techniques such as gel content, abrasion resistance, chemical resistance, pencil hardness, pendulum hardness, MEK rubbing test, contact angle, cross-cut test, gloss, transmittance test, neutron absorption, Limiting Oxygen Index and stress–strain tests. Hybrid coatings showed a signi?cant enhancement in radiation shielding properties. The thermal behavior of coatings was also evaluated. It is observed that the thermal stability of coatings mainly depends on their boron and silicate contents. Results of all analysis conducted on hybrid ?lms, and coatings were discussed.

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    Characterization of Hydrophobic Coatings

    Characterization of Hydrophobic Coatings. Marmara University BAPKO A TYPE Research Project. FEN-A-060510-0131 (Project Budget 40.000 TL)

    Modification and use of natural products have gained a lot of interest in recent years due to their environ- mental friendliness and their availability from different sources. In this study, (castor oil)-based photo-curable highly hydrophobic coatings were prepared and char- acterized. Castor oil was first modified with 3-isocya- natopropyltriethoxysilane and then hydrolyzed prior to the coating preparation. The resulting precursor was mixed with norbornyl acrylate and hexanediol diacry- late, and highly roughened hydrophobic coatings were prepared with the aid of fluorinated/nonfluorinated alkoxysilane coupling agents and hydrophobic fumed nanosilica particles. The coatings were applied on bor- ofloat glass. The addition of fluorine and nanosilica showed a significant impact on the properties of the coatings. As the fluorine and nanosilica contents were increased in the formulations, flame retardancy and the contact angle values of the coatings increased. The surface roughness of the coatings increased with the addition of hydrophobic fumed nanosilica particles. Also, the relation between the surface energy and the contact angle values of the coatings was investigated. Modification and use of natural products have gained a lot of interest in recent years due to their environmental friendliness and their availability from different sources. In this study castor oil based photo curable highly hydrophobic coatings were prepared and characterized. Castor oil (CO) was first modified with 3-isocyanato propyl triethoxy silane and then it was hydrolyzed prior to the coating preparation. The resulting precursor was mixed with norbornyl acrylate, hexane diol diacrylate and hydrophobic coatings were prepared with the aid of fluorinated and nonfluorinated alkoxy silane coupling agents. The addition of fluorine showed a significant impact on the properties of the coatings. As the fluorine content was increased in the formulations, flame retardancy and the contact angle values of the coatings increased. The highest amount of fluorine containing coating showed a contact angle of 119°. Then with the addition of nonfluorinated alkoxysilane compounds, a contact angle of 130° was reached. Also the effect of post-cure temperature on contact angle values was investigated. Thiol–ene photocurable highly hydrophobic and oleophobic coatings were prepared and characterized. Trimethylolpropane tris(3-mercaptopropionate) and triallyl 1,3,5-triazine-2,4,6(1H,3H,5H)-trione were used for the preparation of the base formulation. Highly hydrophobic and oleophobic coatings were prepared with the aid of a fluorinated acrylate (Fluowet AC 812) and hydrophobic-fumed nanosilica particles. Nanoparticles were added for increasing the surface roughness and also to increase thermal and mechanical properties of the coatings. Coatings were applied on ABS (acrylonitrile–butadiene–styrene) and HIPS (high impact polystyrene) substrates. As the fluorine and nanosilica contents were increased in the formulations, flame retardancy, hydrophobicity, and the oleophobicity of the coatings increased. Coatings were found to be highly thermally stable, highly solvent, and chemically resistant. The surface roughness of the coatings increased with the addition of hydrophobic-fumed nanosilica particles. In addition, the relation between the surface energy and the contact angle of the coatings was investigated.

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http://onlinelibrary.wiley.com/doi/10.1002/adv.21289/full

General Publication Properties of Thiol–ene Photocurable Highly Hydrophobic and Oleophobic Nanocomposite Coatings on ABS and HIPS Substrates, 2016

Abstract


Özet

http://www.sciencedirect.com/science/article/pii/S1381514810001987

General Publication Flame retardant thiol–ene photocured coatings, 2016

Abstract


Özet

http://www.sciencedirect.com/science/article/pii/S0300944011001676

General Publication Preparation of photo curable highly hydrophobic coatings using a modified castor oil derivative as a sol–gel component, 2016

Abstract


Özet

http://onlinelibrary.wiley.com/doi/10.1002/app.35054/full

General Publication Synthesis and characterization of polyimide/hexagonal boron nitride composite, 2016

Abstract


Özet

http://www.sciencedirect.com/science/article/pii/S0300944012000628

General Publication Preparation and characterization of boron containing thiol–ene photocured hybrid coatings, 2016

Abstract


Özet

http://kimyakongreleri.org/2010/2010-1081.pdf

General Publication Poliimid/Hegzagonal Bor Nitrür (h-BN) Hibrit Malzemelerin Sentezi ve Karakterizasyonu, 2016

Abstract


Özet

http://onlinelibrary.wiley.com/doi/10.1002/app.33358/full

General Publication Preparation and characterization of UV-curable, boron-containing, transparent hybrid coatings, 2016

Abstract


Özet

http://onlinelibrary.wiley.com/doi/10.1002/vnl.20309/full

General Publication Photo-curable highly water-repellent nanocomposite coatings, 2016

Abstract


Özet

http://link.springer.com/article/10.1007/s00289-011-0481-4

General Publication Thermal and neutron shielding properties of 10B2O3/polyimide hybrid materials, 2016

Abstract


Özet

http://link.springer.com/article/10.1007/s10971-011-2535-3

General Publication Thermal and neutron shielding properties of 10B containing UV cured hybrid coatings, 2016

Abstract


Özet

http://link.springer.com/article/10.1007/s00289-012-0871-2

General Publication UV-curable fluorine-containing hybrid coatings via thiol-ene “click” reaction and an in situ sol–gel method, 2016

Abstract


Özet

Flame retardant thiol–ene photocured coatings

Original Article Reactive and Functional Polymers, Volume *, Issue -, 2011, Pages -

Abstract

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Özet

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Thermal and neutron shielding properties of 10B containing UV cured hybrid coatings

Original Article Journal of sol-gel science and technology, Volume *, Issue -, 2011, Pages -

Abstract

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Özet

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Preparation of photo curable highly hydrophobic coatings using a modified castor oil derivative as a sol-gel component

Original Article Prog. Org. Coat, Volume 72, Issue 3, 2011, Pages 394–401

Abstract

Modi?cation and use of natural products have gained a lot of interest in recent years due to their envi- ronmental friendliness and their availability from different sources. In this study castor oil based photo curable highly hydrophobic coatings were prepared and characterized. Castor oil (CO) was ?rst modi?ed with 3-isocyanato propyl triethoxy silane and then it was hydrolyzed prior to the coating preparation. The resulting precursor was mixed with norbornyl acrylate, hexane diol diacrylate and hydrophobic coatings were prepared with the aid of ?uorinated and non?uorinated alkoxy silane coupling agents. The addition of ?uorine showed a signi?cant impact on the properties of the coatings. As the ?uorine content was increased in the formulations, ?ame retardancy and the contact angle values of the coatings increased. The highest amount of ?uorine containing coating showed a contact angle of 119?. Then with the addi- tion of non?uorinated alkoxysilane compounds, a contact angle of 130? was reached. Also the effect of post-cure temperature on contact angle values was investigated.


Özet

Bu çalışmada hint yağı 3-izosiyanato propil trietoksi silan ile modifiye edilmiş ve devamında hidrolize edilerek kaplama formülasyonlarına ilave edilmiştir. Bunun yanısıra çapraz bağ içeriğinin artması ve aynı zamanda yüzey enerjisinin de düşmesi için kaplama formülasyonlarına flor içeren ve içermeyen çeşitli akrilat ve alkoksi silan bileşikleri ilave edilmiştir. Yapılan temas açısı ölçümleri sonucunda postkürleştirme işleminin de hidrofobik özelliğin artışına etkisi de incelenmiştir. Elde edilen sonuçlara göre çapraz bağ konsantrasyonun artması ve optimum flor içeriğine göre su ile ölçülen en yüksek temas açısı değeri 1300 olarak bulunmuştur.

Preparation and characterization of UV-curable, boron-containing, transparent hybrid coatings

Original Article Journal of applied polymer science, Volume *, Issue -, 2011, Pages -

Abstract

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Özet

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Thiol-ene Based Flame Retardant Coatings

Original Article React. Funct. Polym., , Volume 71, Issue 1, 2011, Pages 36-41

Abstract

The low polymerization tendency of allyl compounds can be enhanced by thiol–ene polymerization systems. In this study, allyldiphenyl phosphine oxide (ADPPO) containing thiol–ene based photocured coatings were prepared with the aim to improve their final thermal and flame retardant properties. The photopolymerization kinetics of thiol–ene based formulations were investigated by real-time infrared spectroscopy. The incorporation of ADPPO into the polymer chains was confirmed by monitoring the conversion of acrylate double bonds and measuring the gel content of the crosslinked films. The experiments showed that as the amount of ADPPO was increased, thermal and flame retardant properties of the coatings were also increased.


Özet

Bu çalışmanın amacı, düşük polimerizasyon eğilimine sahip alil bileşiklerini kullanarak tiol-en polimerizasyon yöntemi ile termal dayanıklılığa sahip kaplama malzemeleri hazırlamaktır. Burada polimerik ana zincir ile alil difenil fosfin oksit tiol-en polimerizasyon yöntemi ile birleştirilmiş ve 6 farklı kompozisyona sahip serbest filmler hazırlanmıştır. Tiol, alil ve vinil gruplarının foto polimerizasyon kinetiği RT-IR tekniği kullanılarak incelenmiştir. Jel içeriği sonuçları da bu dönüşümün başarıyla gerçekleştiğini göstermektedir.

Thermal and neutron shielding properties of 10B2O3/polyimide hybrid materials

Original Article Polymer bulletin, Volume *, Issue -, 2011, Pages -

Abstract

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Özet

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Preparation and characterization of boron containing thiol–ene photocured hybrid coatings

Original Article Progress in Organic Coatings, Volume *, Issue -, 2012, Pages -

Abstract

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Özet

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Synthesis and characterization of polyimide/hexagonal boron nitride composite

Original Article Journal of Applied Polymer Science, Volume *, Issue -, 2012, Pages -

Abstract

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Özet

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Properties of thiol-ene photocurable highly hydrophobic and oleophobic nano composite coatings on ABS and HIPS substrates

Original Article Advance in Polymer Technology, Volume 32, Issue 1, 2013, Pages 416-426

Abstract

In this study, thiol–ene photocurable highly hydrophobic and oleophobic coatings were prepared and characterized. Trimethylolpropane tris(3-mercaptopropionate) and triallyl 1,3,5-triazine-2,4,6(1H,3H,5H)-trione were used for the preparation of the base formulation. Highly hydrophobic and oleophobic coatings were prepared with the aid of a fluorinated acrylate (Fluowet AC 812) and hydrophobic-fumed nanosilica particles. Nanoparticles were added for increasing the surface roughness and also to increase thermal and mechanical properties of the coatings. Coatings were applied on ABS (acrylonitrile–butadiene–styrene) and HIPS (high impact polystyrene) substrates. As the fluorine and nanosilica contents were increased in the formulations, flame retardancy, hydrophobicity, and the oleophobicity of the coatings increased. Coatings were found to be highly thermally stable, highly solvent, and chemically resistant. The surface roughness of the coatings increased with the addition of hydrophobic-fumed nanosilica particles. In addition, the relation between the surface energy and the contact angle of the coatings was investigated.


Özet

Trimethylolpropane tris (3-mercaptopropionate), Triallyl 1,3,5-triazine-2,4,6(1H,3H,5H)-trione, Fluowet AC 812 ve hidrofobik nanosilika partikülleri kullanılarak yüksek hidrofobik ve oleofobik karaktere sahip 8 farklı kaplama malzemesi hazırlanmıştır. Hazırlanan kaplama malzemeleri HIPS ve ABS plakalar üzerine uygulanmıştır. Yapılan analizler sonucunda flor ve nanosilika konsantrasyonunun artışına bağlı olarak kaplamaların yüzey enerjisi düşmüş ve yüzey pürüzlülüğü artmıştır. Bu sonuç da kaplamalara hidrofobik ve oleofobik özellik kazandırmıştır. Yapılan diğer analizler sonucunda da, kaplamaların aynı zamanda yüksek kimyasal ve termal dayanıklılığa da sahip olduğu görülmüştür.

UV-curable fluorine-containing hybrid coatings via thiol-ene “click” reaction and an in situ sol–gel method

Original Article Polymer Bulletin, Volume 70, Issue 3, 2013, Pages 1037-1048

Abstract

In this study, photocurable fluorine-containing coatings were prepared via thiol-ene click chemistry and an in situ sol–gel method. MPTMS was used as a coupling agent to perform both the thiol-ene click reaction and the sol–gel reactions. PFOTES was utilized for the preparation of fluorine-containing coatings. The addition of fluorine and silica showed a significant impact on the properties of the coatings. The addition of silica greatly enhanced the mechanical properties of the coatings. As the fluorine and silica contents were increased in the formulations, flame retardancy, hydrophobicity, and oleophobicity of the coatings increased. High char yields were obtained for the silica- and fluorine-containing samples. Furthermore, the effect of Al2O3 nanoparticles on the properties of the hybrid coatings was investigated.


Özet

Tiol-en kimyası ve sol-jel teniği kullanılarak UV-ışınlarıyla sertleşebilen çeşitli flor içeren kaplama malzemeleri hazırlanmıştır. Yapılan analizler sonucunda formülasyon kompozisyonlarında silika ve flor içeriğinin artışına bağlı olarak malzemelerin mekanik ve termal dayanıklıklarının yanısıra hidrofobik ve oleofobik özelliklerinin de arttığı görülmüştür.

Photo-curable highly water-repellent nanocomposite coatings

Original Article Journal of Vinyl and Additive Technology, Volume *, Issue -, 2013, Pages -

Abstract

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Özet

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Alpha-amylase immobilization on epoxy containing thiol-ene photocurable materials.

Original Article J Microbiol Biotechnol, Volume 23, Issue 2, 2013, Pages 205-210

Abstract

Thiol-ene polymerization is a versatile tool for several applications. Here we report the preparation of epoxide groups containing thiol-ene photocurable polymeric support and the covalent immobilization of alpha-amylase onto these polymeric materials. The morphology of the polymeric support was characterized by scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) coupled with SEM was used to explore the chemical composition. The polymeric support and the immobilization of the enzyme were characterized by FTIR analysis. SEM-EDS and FTIR results showed that the enzyme was successfully covalently attached to the polymeric support. The immobilization efficiency and enzyme activity of alpha-amylase were examined at various pH (5.0-8.0) and temperature (30-80 degrees C) values. The storage stability and reusability of immobilized alpha-amylase were investigated. The immobilization yield was 276 +/- 1.6 mg per gram of polymeric support. Enzyme assays demonstrated that the immobilized enzyme exhibited better thermostability than the free one. The storage stability and reusability were improved by the immobilization on this enzyme support. Free enzyme lost its activity completely within 15 days. On the other hand, the immobilized enzyme retained 86.7% of its activity after 30 days. These results confirm that alpha-amylase was successfully immobilized and gained a more stable character compared with the free one.


Özet

Currrent Teaching

  • 2018 GÜZ

    PHARMACEUTICAL CHEMISTRY LAB I

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  • 2018 GÜZ

    GENERAL CHEMISTRY I

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  • 2018 GÜZ

    PHARMACEUTICAL CHEMISTRY

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  • 2018 GÜZ

    GRADUATION PROJECT

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  • 2018 GÜZ

    SEMINAR

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  • 2018 GÜZ

    MASTER THESIS

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Teaching History

  • 2017 GÜZ

    BASIC CONCEPTS IN ORGANIC CHEMISTRY

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  • 2015 BAHAR

    MASTER THESIS

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  • 2017 BAHAR

    PHARMACEUTICAL CHEMISTRY II LAB.

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  • 2016 GÜZ

    GRADUATION PROJECT

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  • 2015 BAHAR

    LABORATORY SAFETY

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  • 2016 GÜZ

    BASIC CONCEPTS IN ORGANIC CHEMISTRY

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  • 2017 GÜZ

    GENERAL CHEMISTRY

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  • 2017 YAZ

    GENERAL CHEMISTRY I

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  • 2015 GÜZ

    LABOR SAFETI

  • 2014 BAHAR

    PHARMACEUTICAL CHEMISTRY II LAB.

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  • 2015 GÜZ

    MASTER THESIS

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  • 2017 BAHAR

    GENERAL CHEMISTRY I

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  • 2016 BAHAR

    SEMINAR

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  • 2015 BAHAR

    LABOR SAFETI

  • 2015 GÜZ

    LABORATORY SAFETY

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  • 2016 BAHAR

    Scientific Literature Research Methods

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  • 2015 GÜZ

    GENERAL CHEMISTRY

  • 2017 BAHAR

    LABORATORY SAFETY

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  • 2015 GÜZ

    GRADUATION PROJECT

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  • 2017 GÜZ

    SEMINAR

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  • 2016 BAHAR

    MASTER THESIS

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  • 2016 GÜZ

    GENERAL CHEMISTRY

  • 2016 GÜZ

    PHARMACEUTICAL CHEMISTRY LAB I

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  • 2015 GÜZ

    BASIC CONCEPTS IN ORGANIC CHEMISTRY

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  • 2017 GÜZ

    LABORATORY SAFETY

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  • 2017 GÜZ

    PHARMACEUTICAL CHEMISTRY LAB I

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  • 2015 BAHAR

    LITERATURE RESOARCH EVALUATION

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  • 2015 BAHAR

    PHARMACEUTICAL CHEMISTRY II LAB.

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  • 2016 GÜZ

    LITERATURE RESOARCH EVALUATION

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  • 2017 GÜZ

    MASTER THESIS

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  • 2017 GÜZ

    GRADUATION PROJECT

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  • 2015 GÜZ

    SEMINAR

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  • 2017 GÜZ

    GENERAL CHEMISTRY I

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  • 2016 BAHAR

    LABORATORY SAFETY

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  • 2016 BAHAR

    PHARMACEUTICAL CHEMISTRY II LAB.

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  • 2014 BAHAR

    LABORATORY SAFETY

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  • 2015 GÜZ

    PHARMACEUTICAL CHEMISTRY LAB I

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At My Office

Yakın Doğu Üniversitesi- Eczacılık Fakültesi- Farmasötik Kimya ABD - 2. KAT Oda No: 12-H217