کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5191255 | 1381228 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Synthesis and characterization of novel fluoropolymers containing sulfonyl and perfluorocyclobutyl units
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A novel sulfonyl-containing monomer, 4,4â²-sulfonyl-bis(trifluorovinyloxy)biphenyl, and the resulting fluoropolymers with good thermal stability have been prepared. The monomer was synthesized by two steps using 4,4â²-sulfonyldiphenol as starting material and characterized by FT-IR, 1H NMR, 13C NMR, 19F NMR and element analysis in detail. Fluoropolymers containing sulfonyl and perfluorocyclobutyl units were prepared by different polymerization methods. A series of fluoropolymers with higher molecular weights were obtained by solution polymerization in diphenyl ether. The molecular weight is dependent on the polymerization time, polymerization temperature and the concentration of the monomer. The resulting polymers show excellent solubility in conventional solvents and good thermal stability with a high decomposition temperature about 500 °C measured by TGA.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 46, Issue 18, 23 August 2005, Pages 7590-7597
Journal: Polymer - Volume 46, Issue 18, 23 August 2005, Pages 7590-7597
نویسندگان
Xiaoyu Huang, Ruowen Wang, Pinqiao Zhao, Guolin Lu, Sen Zhang, Feng-ling Qing,