Benzoxazine containing polyester thermosets with improved adhesion and flexibility

Alev Tuzun, Baris Kiskan, Neslihan Alemdar, A. Tuncer Erciyes, Yusuf Yagci*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

90 Citations (Scopus)


High molecular weight polyesters containing thermally curable benzoxazine units in the main chain have been synthesized. For this purpose, first the diol functional monomer is synthesized through the Mannich and subsequent ring closure reactions of bisphenol-A, paraformaldehyde, and 5-amino-1-pentanol. Polycondensation of the resulting benzoxazine and pyromellitic dianhydride or 4-4'-(hexafluoroisopropylidene) diphatalic anhydride with or without dibutyltin laurate yielded the corresponding polyesters with the molecular weights between 5800 and 7000 Da. The structures of the precursor diol monomer and the resulting polyesters are confirmed by Fourier transform infrared spectroscopy and proton nuclear magnetic resonance spectroscopy analysis. Curing behavior of both the monomer and polymers has also been studied bydifferential scanning calorimetry. Flexible films of the polyesters were obtained by solvent casting on tin plates and crosslinked by heating in the absence of any catalyst. The cured films exhibited high flexibility and adhesion on the tin plates as determined by ASTM and DIN tests. Thermal properties of the cured polymers were also investigated by thermogravimetric analysis (TGA).

Original languageEnglish
Pages (from-to)4279-4284
Number of pages6
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Issue number19
Publication statusPublished - 1 Oct 2010


  • Adhesion
  • Benzoxazine
  • Crosslinking
  • Curing
  • Flexibility
  • High performance
  • Polybenzoxazine
  • Thermoset


Dive into the research topics of 'Benzoxazine containing polyester thermosets with improved adhesion and flexibility'. Together they form a unique fingerprint.

Cite this