新型含苯并二噻吩与苯并二吡咯酮基元的D-A共聚物的合成及性质
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摘要
采用苯并二吡咯酮作电子受体单元,在钯催化下,与不同取代基修饰的电子给体单元苯并二噻吩进行Stille偶联聚合反应,合成了两种新型的电子给-受体(D-A)聚合物(P1和P2),其结构和性能经UV-Vis,~1H NMR,~(13)C NMR,元素分析,GPC, CV和TGA表征。结果表明:薄膜态P1和P2在300～800 nm表现出较强吸收。P1和P2的低能端吸收峰值分别位于621 nm和616 nm。氧化峰分别位于0.41 V和0.46 V,能隙分别为1.41 eV和1.36 eV。
Two novel electro-donor and acceptor(D-A) polymers(P1 and P2) were synthesized through Stille coupling polymerization from benzodipyrrolidones with modified benzodithiophenes, using Pd as catalyst. The structures and properties of P1 and P2 were characterized by UV-Vis, ~1H NMR, ~(13)C NMR, elemental analysis, GPC, CV and TGA. The results showed that P1 and P2 exhibited wide range absorption from 300 nm to 800 nm with low energy absorption peaks at 621 nm and 616 nm. The onset oxidation potentials of P1 and P2 were about 0.36 V and 0.44 V, and the energy gaps were 1.41 eV and 1.36 eV, respectively.
Two novel electro-donor and acceptor(D-A) polymers(P1 and P2) were synthesized through Stille coupling polymerization from benzodipyrrolidones with modified benzodithiophenes, using Pd as catalyst. The structures and properties of P1 and P2 were characterized by UV-Vis, ~1H NMR, ~(13)C NMR, elemental analysis, GPC, CV and TGA. The results showed that P1 and P2 exhibited wide range absorption from 300 nm to 800 nm with low energy absorption peaks at 621 nm and 616 nm. The onset oxidation potentials of P1 and P2 were about 0.36 V and 0.44 V, and the energy gaps were 1.41 eV and 1.36 eV, respectively.
引文
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