Synthesis, and spectroscopic, thermal and dielectric properties of phosphazene based ionic liquids: OFET application and tribological behavior    
Yazarlar (8)
Doç. Dr. Hüseyin AKBAŞ Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Ahmet Karadaǧ
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Ali Destegül
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Çiǧdem Çakirlar
Gebze Teknik Üniversitesi, Türkiye
Yusuf Yerli
Yıldız Teknik Üniversitesi, Türkiye
Kadir Cihan Tekin
Dokuz Eylül Üniversitesi, Türkiye
Uǧur Malayoǧlu
Dokuz Eylül Üniversitesi, Türkiye
Zeynel Kiliç
Ankara Üniversitesi, Türkiye
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı New Journal of Chemistry
Dergi ISSN 1144-0546 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q2
Makale Dili İngilizce
Basım Tarihi 01-2019
Cilt No 43
Sayı 5
Sayfalar 2098 / 2110
DOI Numarası 10.1039/c8nj04948c
Makale Linki https://doi.org/10.1039/c8nj04948c
Özet
Mono(4-fluorobenzyl)cyclotriphosphazene derivatives with (dimethylamino)ethoxy (Pz1a-2a) and (dimethylamino)propoxy (Pz1b-2b) chains were synthesized. The chain nitrogen atoms of fully substituted cyclotriphosphazene compounds were quaternized by treatment with CH3I to give phosphazene based ionic liquids (PzILs), PzIL1-PzIL4. Subsequent metathesis with LiN(SO2CF3)2 gave the salts, PzIL1a-PzIL4a. The structures of the PzILs were confirmed by elemental analyses, FTIR and 1H, 13C{1H}, and 31P{1H} NMR techniques. The thermal properties of all compounds were described using thermogravimetric analysis (TGA). These newly synthesized PzILs were used as the dielectric layer in organic field effect transistors (OFETs). Both dielectric and OFET characterization were performed. Because of the high dielectric effect of the PzILs, the fabricated OFETs operated in the low voltage range. Furthermore, a sliding wear test was conducted at room temperature using an AA7075 disc specimen against a stationary 100Cr6 steel ball. The wear protection of the PzILs and 15W40 engine oil was determined by considering the volume loss of AA7075. The lowest coefficient of friction (COF) and wear loss were obtained with PzIL4a.
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