Phenolic Naphthoxazines as Curing Promoters for Benzoxazines


Kaya G., Kışkan B. , Yagci Y.

MACROMOLECULES, vol.51, pp.1688-1695, 2018 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 51
  • Publication Date: 2018
  • Doi Number: 10.1021/acs.macromol.8b00218
  • Title of Journal : MACROMOLECULES
  • Page Numbers: pp.1688-1695

Abstract

The effect of phenolic hydroxyl bearing naphthoxazines as catalysts for the ring-opening polymerization (ROP) of simple 1,3-benzoxazines was investigated. The latent catalytic role of napthoxazines in the curing process of the mixtures was demonstrated by DSC and FT-IR investigations. It was found that phenolic naphthoxazines cause clear reduction in ROP temperature, particularly when electron-withdrawing groups are attached and an onset ROP temperature as low as 169 degrees C is attained. Thermal properties of the final polymers were also analyzed, and no significant effect of naphthoxazines on the thermal stability of the cured polybenzoxazines was observed.