Synthesis and characterization of polymers from bisphenol derivatives and perfluorinated aromatic compounds

Abstract

Polycondensation of 2,2-bis(4-hydroxyphenyl)hexafluoropropane (BAF) or bisphenol-A (BPA) with perfluorobiphenyl (PFBP) or hexafluorobenzene (HFB) was investigated. The polycondensation of BAF with PFBP in the presence of NaH in N,N-Dimethylacetamide proceeded easily to give high molecular weight polymers. The polycondensation of HFB with BAF also took place, but the polymer yield and the Mn of the obtained polymer were lower than that of BAF with PFBP. When the polycondensation of 2,2-bis(4-propylcarbamoylphenyl)hexafluoropropane (PCBAF) as a BAF derivative with PFBP was carried out, a highest rate of polymerization was observed. The 19F NMR spectra of the resulting polymer indicate that the structure with respect to the perfluorinated aromatic compound in the chain consists predominantly of para-position linkage unit. All the polymers obtained showed a high thermal stability and high contact angles of water. © 2008 The Society of Polymer Science.