Thermal Behavior of Bisphenol-A-Based Copolybenzoxazine with a Nitrile Functional Group 


Vol. 59,  No. 4, pp. 221-227, Aug.  2022
10.12772/TSE.2022.59.221


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  Abstract

The thermal behavior of copolybenzoxazine with 2,2-bis(3,4-dihydro-3-phenyl- 2H-1,3-benzoxazine)propane and 2,2-bis(3,4-dihydro-3-benzonitrile-2H-1,3-benzoxazine) propane was studied. The structure of the two monomers was confirmed by proton nuclear magnetic resonance and Fourier transformed infrared spectroscopies. The thermal polymerization behaviors of the benzoxazine monomers and their blends were studied using differential scanning calorimetry and thermogravimetric analyses. Results indicated that the nitrile functional group in the benzoxazine monomer significantly influences the maximum curing temperature and char yield of the resin. The thermal decomposition behaviors of the polybenzoxazines and copolybenzoxazines were examined at various compositions. The copolybenzoxazines with a nitrile group exhibited excellent thermal stability and a synergy effect on char yield.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)