Development of New Flame Retardant Phosphorus- and Silicon-Based Polybenzoxazine

M. SPONTÓN; J. C. RONDA; M. GALIÀ; V. CÁDIZ

Simposio; V Argentine-Chilean Polymer Symposium”, “VIII Argentine Polymer Symposium; 2009

In our search for new phosphorus- and siliconcontaining glycidyl derivatives with high thermal andchemical stability, we synthesized diglycidyl ether of  (2,5-dihydroxyphenyl)diphenyl phosphine oxide (Gly- P) (2) and diglycidyloxymethylphenyl silane (Gly-Si). (3) This work focuses on developing high performance flame retardant thermosetting resins through the copolymerization of the benzoxazine of Bisphenol A (Bz-BA) and the above phosphorus- and silicon containing glycidyl derivatives (Scheme 1). The copolymerization reaction and the copolymer properties, with special attention in flame retardant properties, were examined and discussed. Thus, this work reports the results of cone calorimetry and LOI studies.