Bifunctional benzoxazines: Synthesis and polymerization of resorcinol based single isomers
作者:Hannes Schäfer、André Arnebold、Johannes Stelten、Jordi Marquet、Rosa María Sebastián、Andreas Hartwig、Katharina Koschek
DOI:10.1002/pola.27966
日期:2016.5.1
stability and excellent mechanical performance, benzoxazines suffer from high polymerization temperatures. Isomeric mixtures of bifunctionalbenzoxazinesbased on resorcinol proved already to be highly reactive monomers enabling polymerizations at lower temperatures. This contribution describes the polymerization behavior of singlebenzoxazineisomers and furthermore the influence of different substituents
The industrial applications of benzoxazines are limited due to their high curing temperatures. This drawback can be overcome by more reactive precursor compared to conventional benzoxazines or by application of efficient initiators. We report the synthesis of a new resorcinol‐basedbenzoxazine and its cationic polymerization with thermolatent super acids, namely organic sulfonium hexafluoroantimonates