کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
177651 458993 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The synthesis and luminescence of π-conjugated polymers derived from 3,3′-dicarbazoles
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
The synthesis and luminescence of π-conjugated polymers derived from 3,3′-dicarbazoles
چکیده انگلیسی

Novel, soluble, π-conjugated copolymers comprising 3,3′-bicarbazole and phenylene or thieno[3,2-b]thiophene comonomer were synthesized using the palladium-catalyzed Heck reaction. The resulting copolymers exhibited good solubility in common organic solvents such as chloroform, chlorobenzene, etc. and good thermal stability. The photoluminescence spectral maxima of the polymers were located at 426 (sh. 454) and 479 nm, indicating that they were blue and greenish-blue emitting materials in solution, respectively. The HOMO levels of the polymers were −5.16 and −5.24 eV and the band gaps were 2.50 and 2.26 eV, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 78, Issue 3, September 2008, Pages 207–212
نویسندگان
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