کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7808221 | 1501660 | 2018 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dielectric and thermal properties of the methacrylate polymer bearing chalcone side group
ترجمه فارسی عنوان
خواص دی الکتریک و حرارتی گروه جانبی چالکون پلیمر متاکریلات
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
The 1-(1-benzofuran-2yl)-3-(4-hydroxyphenyl)propen-1-one (compound 1) from the reaction between 1-(1-benzofuran-2-yl) ethanone and 4-hydroxybenzaldehyde was firstly synthesized. And secondly, we synthesized 4-[3-(1-benzofuran-2-yl)-3-oxoprop-1-en-1-yl] phenyl chloroacetate (compound 2) as the result of the reaction between the compound 1 and chloroacetyl chloride. The monomer was prepared by the reaction of compound 2 and sodium methacrylate. The monomer was polymerized using the free radicalic polymerization method (FRP). The structure characterization of the polymer was determined utilizing 1H,13C- NMR and FT-IR techniques. Thermal behaviour of the homopolymer was studied by measurements of TGA and DSC. For thermal decomposition kinetics of homopolymer, Flynn-Wall-Ozawa method was applied to thermogravimetry curves. The dielectric measurements were studied using the impedance analyzer technique at a frequency which varied between 100â¯Hz and 20â¯kHzâ¯Hz depending on the alternating current (AC) conductivities. The dielectric parameters such as dielectric constant and dielectric loss are changed with the temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1157, 5 April 2018, Pages 239-246
Journal: Journal of Molecular Structure - Volume 1157, 5 April 2018, Pages 239-246
نویسندگان
Taner Ãelik, Mehmet Fatih CoÅkun,