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Keywords:

  • functionalization of polymers;
  • hyperbranched;
  • NLO

Abstract

In this article, a facile route was designed to prepare four new hyperbranched poly(arylene-ethynylene)s containing azo-chromophore moieties through one-pot “A2+B3” approach via simple Sonogashira coupling reaction. The polymers were all soluble in organic solvents and demonstrated good nonlinear optical (NLO) properties, because of the three-dimensional spatial isolation effect of these hyperbranched polymers. Due to the different B3-type comonomer, the self-assembly effect of pentafluoroaromatic in the interior of these polymers were different, leading to the different trends of the NLO activities. © 2012 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2012