【摘 要】
：
Three novel conjugated polymers bearing 3,4-bis(4-hexylthiophen-2-yl)-3-cyclobutene-l,2-dione unit in their main chain have been synthesized successfully in goo
【机 构】
：
College of Chemistry,Analytical & Testing Center
【基金项目】
：
The authors gratefully thank the financial supports of the National Natural Science Foundation of China;Analytical & Testing Center of Sichuan University for NMR measurements
论文部分内容阅读
Three novel conjugated polymers bearing 3,4-bis(4-hexylthiophen-2-yl)-3-cyclobutene-l,2-dione unit in their main chain have been synthesized successfully in good yields through Suzuki or Stille coupling reaction. Their molecular structures have been confirmed by FT-IR, 1H NMR and 13C NMR. All these copolymers exhibit broad and strong absorption bands in UV-vis region, and their optical band gaps are calculated to be 1.6-2.0 eV, suggesting that they have good coverage with the solar spectrum. These polymers have good thermostability and solubility in common organic solvents. Moreover, all these objective macromolecules possess high electron affinity of ~3.8 eV determined from cyclic voltammetry measurement, implying that they are potential n-type polymeric photovoltaic materials.
其他文献
A series of new fluoro-containing copolymers have been synthesized by a Mitsunobu reaction with 4,4'-(hexafluoro-isopropylidene)bisphenol A (6FBPA) and the corr
A grid of binary evolution models are calculated for the study of a blue straggler (BS) population in intermediate age (log Age =7.85 - 8.95) star clusters.The
Theoretical investigations have been performed to explore the variation in electronic, optical, and charge transport properties upon the change of the chemical
TeOx-SiO2 composite films having third-order nonlinearities were prepared by electrochemically induced sol-gel deposition method on ITO substrate. The third-ord
The effects of chloride anion (C1-) (up to 1.0 mol/L) on the decolorization of a model compound,azo dye Acid Orange 7 (AO7),by sulfate radical (SO4-*) based-per
Three polymer-amphiphile complexes were prepared by combining poly(allylamine hydrochloride) (PAH) with the potassium salt of mono-, di-, and trisubstituted ben
5-[(4'-Heptoxy-4-biphenylyl)carbonyloxy]-l-pentyne (A-3, 7) was synthesized and the phase structures and transitions were investigated by differential scanning
1,10-Phenanthrolinium N-ylides, can react with malonitrile and aromatic aldehydes via a domino-Knoevenagel cyclization to afford a new class of mhydropyrrolo[l,
Regulated and unregulated emissions from four passenger cars fueled with methanol/gasoline blends at different mixing ratios (M15,M20,M30,M50,M85 and M100) were
A series of MoTe0.15V0.1PxOn catalysts supported on the SiC were prepared by incipient wetness impregnation. The addition of P to MoTe0.15V0.1On/SiC catalysts i