کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5209846 1503077 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Donor-acceptor-donor polymers utilizing pyrimidine-based acceptors
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Donor-acceptor-donor polymers utilizing pyrimidine-based acceptors
چکیده انگلیسی
Pyrimidine acceptor groups were coupled with thienyl, 3,4-ethylenedioxythienyl (EDOT), and 3,4-(2,2-dibutylpropylenedioxy)thienyl (ProDOT-Bu2) donor groups in an attempt to synthesize stable n-doping polymers. Monomers were synthesized using a triorganoindium coupling reaction and characterized using nuclear magnetic resonance spectroscopy, X-ray crystallography, and electrochemical characterization techniques. The monomers undergo oxidative polymerization, with the alkylenedioxy-functionalized rings reducing oxidation and reduction potentials of monomer and polymer relative to the non-functionalized thiophene analogues, yielding electroactive polymers. The unsymmetrical nature of the monomers leads to unusual redox processes apparent during electrochemical polymerization. The polymer containing ProDOT-Bu2 groups was soluble in chloroform, while the other two polymers were insoluble. Band gaps were 1.6 eV for the ProDOT-based polymer and 1.8 eV for the EDOT-based polymer, which are comparable to other bisalkylenedioxyarylene-based polymers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Reactive and Functional Polymers - Volume 83, October 2014, Pages 113-122
نویسندگان
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