Time-efficient gelation of benzoxazine using p-toluenesulfonic acid (TSA) as the catalyst in several solvents and controllable pore structure formation in the resultant polybenzoxazine (PBZ) aerogels are reported. The aerogel building blocks (spheres vs. strands) and the pore surface area show strong dependence on the solvent and the gelation temperature.
S. Gu, Z. Li, T. Miyoshi and S. C. Jana, RSC Adv., 2015, 5, 26801 DOI: 10.1039/C5RA02635K
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