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Keywords:

  • conjugated polymer;
  • copolymerization;
  • dihydropyrroloindoledione;
  • Knoevenagel condensation;
  • organic electronics;
  • Pummerer-type cyclization;
  • synthesis

Abstract

Two novel dihydropyrroloindoledione (DPID)-based copolymers have been synthesized in a two directional approach and characterized (gel permeation chromatography (GPC), ultraviolet-visible (UV–vis), cyclic voltammetry, and computational models). These planar, broad absorption copolymers show promise for use in organic electronics, with deep energy levels and low bandgaps. The two-directional Knoevenagel condensation used demonstrates the versatility of DPID as a useful yet underexploited conjugated unit. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2013