ELEKTRİK ALAN İLE LİF ÇEKİMİ YÖNTEMİ İLE ELDE EDİLEN LİGAND KATKILI POLİÜRETAN NANOLİFLERİN MORFOLOJİK VE LÜMİNESANS ÖZELLİKLERİNİN İNCELENMESİ
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
INVESTIGATION THE MORPHOLOGICAL AND LUMINESCENCE PROPERTIES OF LIGAND DOPED POLYURETHANE NANOFIBERS PRODUCED BY ELECTROSPINNING
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
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