Elektrik Alan ile Lif Çekimi Yöntemi ile Elde Edilen Ligand Katkılı Poliüretan Nanoliflerin Morfolojik ve Lüminesans Özelliklerinin İncelenmesi
Year 2017,
Volume: 24 Issue: 105, 18 - 24, 30.03.2017
Ramazan Erdem
Özlem Erdem
Abstract
Lüminesans özelliğe sahip binaftilamin ligand sentezi gerçekleştirilmiş ve diklorometan/hekzan karışımında kristallendirilmiştir. Bu yapıların elemental karakterizasyonunda fourier transform infrared spectroscopy (FTIR) ve nükleer manyetik rezonans (H-NMR) spektrumlarından yararlanılmıştır. Sentezlenen ligand, elektrik alan ile lif çekimi yöntemi ile poliüretan nanolifler içerisine katkılanmıştır. Bu liflerden meydana gelen nano ağ yüzeylerin morfolojik analizleri taramalı elektron mikroskobunda (SEM) incelenmiştir. Çapları ortalama 730±322 nm ile 858±307 nm aralığında değişen hatasız liflerin elde edildiği görülmüştür. Yapılan florimetri analizleri sonucunda, ligand katkılı liflerin yaklaşık olarak 530 nm civarında emisyon verdiği ve lüminesans özellik sergilediği tespit edilmiştir.
References
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Investigation the Morphological and Luminescence Properties of Ligand Doped Polyurethane Nanofibers Produced by Electrospinning
Year 2017,
Volume: 24 Issue: 105, 18 - 24, 30.03.2017
Ramazan Erdem
Özlem Erdem
Abstract
Luminescent binaphthylamine ligand was synthesized and crystallized in dichloromethane/hexane blend. Fourier Transform Infrared Spectroscopy (FTIR) and Nuclear Magnetic Resonance (H-NMR) analyses were carried out in order to characterize the structures elementally. Ligands were incorporated into the polyurethane nanofibers by using electrospinning technique. Morphological properties of the nanofibrous webs were explored by utilizing scanning electron microscope (SEM). Findings displayed that defect free nanofibers were obtained within the diameter range between 730±322 nm and 858±307 nm. Fluorometric analysis revealed that ligand doped nanofibers showed emission at approximately 530 nm and exhibited luminescence characteristics.
References
- Kozanoğlu, G.S., (2006), Elektrospinning Yöntemiyle Nanolif Üretim Teknolojisi, Yüksek Lisans Tezi, İstanbul Teknik Üniversitesi Fen Bilimleri Enstitüsü, 5-59, İstanbul, Türkiye.
- Yang, H., (2007), Fabrication and Characterization of Multifunctional Nanofiber Nanocomposite Structures through Coelectrospinning Pocess, PhD Thesis, Drexel University, USA.
- Erdem, R., (2013) Nanolif Bazlı Yara Örtüsü Yüzeyi Geliştirilmesi, Doktora Tezi, Marmara Üniversitesi Fen Bilimleri Enstitüsü, 42-51, İstanbul, Türkiye.
- Demir, M. M., Yilgor, I., Yilgor, E., Erman, B., (2002), Electrospinning of polyurethane fibers, Polymer, 43, 3303–3309.
- Huanga, Z.M., Zhang, Y.-Z., Kotaki, M., Ramakrishna, S., (2003), A review on polymer nanofibers by electrospinning and their applications in nanocomposites, Composites Science and Technology, 63, 2223–2253.
- Bhardwaj, N., Kundu, S. C., (2010), Electrospinning: A fascinating fiber fabrication technique, Biotechnology Advances, 28, 325–347.
- İlhan, M., (2014), Synthesis, structure and photoluminescence properties of Ho3+ doped TTBeBaTa2O6 phosphors, Solid State Sciences, 38, 160-168.
- Zhu, Y., Chen, Z., Ge, M., (2014), Preparation of Sr2MgSi2O7:Eu2+, Dy3+nanofiber by electrospinning assisted solidstate reaction, Journal of Materials Science: Materials in Electronics, 25, 2857–2862.
- Cheng, Y., Zhao, Y., Zhang, Y., Cao, X., (2010), Preparation of SrAl2O4:Eu2+, Dy3+ fibers by electrospinning combined with sol–gelprocess, Journal of Colloid and Interface Science, 344, 321–326.
- Zhang, H., Song, H., Dong, B., Han, L., Pan, G., Bai, X., Fan, L., Lu, S., Zhao, H., Wang, F., (2008), Electrospinning preparation and luminescence properties of europium complex/polymer composite fibers,The Journal of Physical Chemistry C, 112, 9155– 9162.