کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1315729 976061 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
EPR studies on regio-selective H-abstraction by “magic blue” reagent from polymers
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
EPR studies on regio-selective H-abstraction by “magic blue” reagent from polymers
چکیده انگلیسی

The radical reactions of polyolefin and olefin copolymers (4–9), polydienes and diene coplymers (10–15), and polysiloxane (16) with “magic blue” reagent containing H-abstracting agent-bis{perfluoro-1-[1-(2-fluorosulfonyl)ethoxy]ethyl}nitroxide [FSO2CF2CF2OCF(CF3)]2N(O) (2)and spin trap-perfluoro-1-nitroso-[1-(2-fluoro-sulfonyl)ethoxy]ethane FSO2CF2CF2OCF(CF3)NO (3) were studied by EPR detection of the spin adducts of the corresponding polymeric radicals generated in the H-abstraction step to the spin trap 3, namely, the nitroxides FSO2CF2CF2OCF(CF3)N(O) (polymer-H) 17–29. EPR studies have provided information about the regio-selectivity of H-abstraction, the subsequent radical steps followed H-abstraction and grounded a possibility of employing “magic blue” reagent in polymer modification via H-abstraction-initiated grafting polymerization.

The generation of polymer nitroxides 17–29 via H-abstraction/spin trapping reactions by new “magic blue” (2 + 3) from a series of polymers 4–16 are reported. Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Fluorine Chemistry - Volume 127, Issue 3, March 2006, Pages 426–432
نویسندگان
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