Journal of Thermal Analysis and Calorimetry

, Volume 128, Issue 3, pp 1711–1717 | Cite as

Synthesis, characterization of new bisphenol-based benzoxazines and the thermal properties of their polymers

Article
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Abstract

New bisphenol-based benzoxazines (BBA-a and BBA-bra) were synthesized from bisphenol containing trityl group, paraformaldehyde, aniline and 2,4,6-tribromoaniline by a solventless method. The chemical structure of the monomers was analyzed by FTIR, 1H NMR and elemental analysis. FTIR and differential scanning calorimetry (DSC) indicated that the polymerization of BBA-a and BBA-bra was thermally initiated and occurred via ring opening of benzoxazine monomers. Comparing with that of BBA-a, the curing exothermic peak of BBA-bra shifted from 230 to 245 °C. Thermogravimetry (TG) showed that PBZ from BBA-a and BBA-bra (named as PBBA-a and PBBA-bra, respectively) had superior thermal stability. The char yields of PBBA-a and PBBA-bra at 800 °C were 42.37 and 48.30%, respectively.

Keywords

Benzoxazine Bisphenol Polymerization Thermal stability 
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Notes

Acknowledgements

The project sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, National Technology Support Program (2015BAB07B04), China.

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2017

Authors and Affiliations

  • Shengfang Li
    • 1
    • 2
  • Chenglu Yang
    • 1
    • 3
  • Chen Li
    • 1
    • 3
  • Shilin Yan
    • 3
  1. 1.School of Chemistry and Chemical EngineeringHubei Polytechnic UniversityHuangshiPeople’s Republic of China
  2. 2.Hubei Key Laboratory of Mine Environmental Pollution Control and RemediationHubei Polytechnic UniversityHuangshiPeople’s Republic of China
  3. 3.School of Materials Science and EngineeringWuhan University of TechnologyWhuhanPeople’s Republic of China

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