Synthesis and properties of poly(p-phenylene vinylene) derivatives with hyperbranched structure and containing a nitro substituent

نویسندگان

  • Ruyu Li
  • Yanjiao Mo
  • Rong Shi
  • Peng Li
  • Chengyu Li
  • Zhenjiang Wang
  • Xun Wang
  • Shengbiao Li
چکیده

ABSTRACT In order to improve efficiency, processability, and stability, two groups of novel poly(p-phenylene vinylene) (PPV) derivatives (P1-P3 and P4-P6) with hyperbranched structure and containing a nitro substituent were synthesized via a Gilch reaction in different monomer ratios. The properties of the polymers were investigated by using UV-Vis absorption, fluorescence spectroscopy, cyclic voltammetry, and thermogravimetric analysis. The result shows that the band gaps of the PPV derivatives with a nitro substituent were decreased and the polymers had higher molecular weights (106), excellent solubility in common organic solvents, good film-forming ability, and better thermal stability. The polymers can be used as an efficient acceptor material in polymeric solar cells. GRAPHICAL ABSTRACT

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عنوان ژورنال:

دوره 145  شماره 

صفحات  -

تاریخ انتشار 2014