A new crosslinking reaction between benzoxazine and benzoxazole was discovered by investigating the heat-curing reaction of bisphenol A/aniline-based benzoxazine monomer with a polybenzoxazole (PBO) model compound. This new crosslinking reaction provides a facile and straightforward method for the preparation of high-performance crosslinked PBO/polybenzoxazine copolymer composites.
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Zhang et al. (2014) studied this question.
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