Synthetic routes to polyheteroacenes: Characterization of a heterocyclic ladder polymer containing phenoxathiinium-type building blocks

K Oyaizu, T Mikami, F Mitsuhashi, E Tsuchida

Index: Oyaizu, Kenichi; Mikami, Takefumi; Mitsuhashi, Fumio; Tsuchida, Eishun Macromolecules, 2002 , vol. 35, # 1 p. 67 - 78

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Citation Number: 34

Abstract

The synthetic routes to ladder polymers that consist of benzenetetrayl subunits with oxo and methylsulfonio linkages are described. As the key intermediate, poly (phenylene oxide) s having pendant methylsulfenyl groups are prepared by copper-catalyzed oxidative polymerization of the corresponding phenols with O2. The oxidation of the polymer with an equimolar amount of H2O2 in the presence of acetic acid effects the high-yielding ...