2,2-(3-(Sübstitüe-florofenil)-1-(4-oksifenil)prop-2-en-1-one)-4,4,6,6- bis[spiro(2',2'-dioksi-1',1'-bifenilil]SiklotrifosfazenlerinDielektrik ve Termal Özellikleri ; Dielectric and Thermal Properties of 2,2-(3-(Substitüted-fluorophenyl)- 1-(4-oxyphenyl)prop-2-en-1-one)-4,4,6,6-bis[spiro(2',2'-dioxy-1',1'-biphenylyl]Cyclotriphosphazenes
2018
Online
academicJournal
Zugriff:
In this study, it is aimed to determine the dielectric and thermal properties of side group substituted fluorine cyclotriphosphazene compounds. In this purpose, 4'-hydroxy-substituted chalcone compounds (1a-c) were initially synthesized by reacting 4'-hydroxyacetophenone with 2-fluorobenzaldehyde (a), 3- fluorobenzaldehyde (b) and 4-fluorobenzaldehyde (c) in ethanol solution in the presence of NaOH. Afterwards, 2,2-dichloro-4,4,6,6-[spiro(2',2''-dioxy-1',1''-biphenylyl)]cyclotriphosphazene (DPP) was obtained by reacting 2,2'-dioxybiphenol with hexachlorocyclotriphosphazene (HCP). The DPP compound was then reacted with the synthesized 1a-c compounds to obtain chalcone-substituted cyclotriphosphazene compounds (BPCP 1-3). The structures of the substituted cyclotriphosphazene compounds were characterized by FT-IR, 1H, 13C-APT and 31P-NMR spectroscopy methods, and the thermal behavior of the compounds was determined by DSC and TGA thermal analysis methods. The TGA results show that the compounds have a stable structure even at high temperatures. The dielectric constant, dielectric loss factor and AC conductivity values of phosphazene compounds (BPCP 1-3) were determined with an impedance analyzer (between 100 Hz and 30 kHz) as a function of frequency versus increasing temperature. In addition, the capacitance and dielectric constant values of the compounds decreased in increasing frequency and temperature and remained constant at high frequencies. The obtained results indicate that the BPCP 1-3 compounds are non-conductive. ; Bu çalışmada, yan grup olarak flor bulunan kalkonsübstitüesiklotrifosfazen bileşiklerinin dielektrik ve termal özelliklerinin belirlenmesi amaçlanmıştır. Bu amaçla ilk olarak 4'-hidroksiasetofenon ile 2- florobenzaldehit (a), 3-florobenzaldehit (b)ve 4-florobenzaldehit (c)NaOH varlığında etanol çözücüsünde etkileştirilerek 4'-hidroksi-sübstitüekalkon bileşikleri (1a-c) sentezlendi. İkinci olarak hekzaklorosiklotrifosfazen(HCP) ile 2,2'-dioksibifenolün reaksiyonundan ...
Titel: |
2,2-(3-(Sübstitüe-florofenil)-1-(4-oksifenil)prop-2-en-1-one)-4,4,6,6- bis[spiro(2',2'-dioksi-1',1'-bifenilil]SiklotrifosfazenlerinDielektrik ve Termal Özellikleri ; Dielectric and Thermal Properties of 2,2-(3-(Substitüted-fluorophenyl)- 1-(4-oxyphenyl)prop-2-en-1-one)-4,4,6,6-bis[spiro(2',2'-dioxy-1',1'-biphenylyl]Cyclotriphosphazenes
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Autor/in / Beteiligte Person: | Koran, Kenan |
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Veröffentlichung: | 2018 |
Medientyp: | academicJournal |
DOI: | 10.5578/fmbd.66391 |
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