Tunable poly(aryleneethynylene) networks prepared by emulsion templating for visible-light-driven photocatalysis

A simple structural design principle of poly(arylene ethynylene) π-conjugated microcellular polymers as the pure organic, heterogeneous photocatalytic systems is presented. They are synthesized by the Sonogashira cross-coupling polymerization of 1,3,5-triethynylbenzene and 1,4-diiodobenzene, 2,5-dimethoxy-1,4-diiodobenzene or 2,6-diiodo-4-nitrophenol within the high internal phase emulsion (HIPE). Such poly(arylene ethynylene)-based polyHIPEs...