کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4907670 1426574 2017 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of stable electrochromic polyimides with quinolin-8-yloxy-substituted triphenylamine units
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Synthesis and characterization of stable electrochromic polyimides with quinolin-8-yloxy-substituted triphenylamine units
چکیده انگلیسی
Herein, three kinds of electrochromic aromatic polyimides (PIs) were synthesized from 4,4′-diamino-4″-(quinolin-8-yloxy) triphenylamine (DAQTPA) with different dianhydrides, respectively. These PIs showed good thermostability below 450 °C even in air atmosphere. The maximum UV-vis absorption bands of PIs located at 321-338 nm for solid films. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels of the PIs were calculated from the cyclic voltammetry (CV) test as − 5.42 to − 5.44 eV and − 3.53 to − 3.85 eV, respectively. These PIs performed stable reversible electrochromic properties with optical transmittance change (ΔT) around 28-43% and coloration efficiency (η) around 74-117 cm2 C− 1.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 801, 15 September 2017, Pages 388-394
نویسندگان
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