Catalytic Cs₂CO₃ Promotes “Silyl Method”-Type Polycondensation

Claus Vogel, Jochen Meier-Haack

Leibniz-Institut für Polymerforschung Dresden e.V., Dresden, Germany.

DOI: 10.4236/ojpchem.2012.21001                

Abstract

Catalytic amounts of cesium carbonate are sufficient to initiate the “silyl method”-type step-growth polymerization of phenylene-bis-TMS-ethers and -thioethers with activated aryl fluoride monomers, and can thus be used instead of ce-sium fluoride or potassium carbonate. Cesium fluoride is very hygroscopic and potassium carbonate is generally used in equimolar amounts. The efficiency of catalytic amounts of cesium carbonate is demonstrated by the synthesis of poly(phenylene ether ether ketone) and poly(phenylene sulfide sulfone) examples.

Keywords

Cesium Carbonate; Polycondensation; Step-Growth Polymerization

Conflicts of Interest

The authors declare no conflicts of interest.

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