Figure 1.

Benzoxazine chemistry and catechol‐derived benzoxazine materials. A) Benzoxazine monomers are readily prepared from phenols, primary amines, and formaldehyde, and undergo thermally‐accelerated ring opening polymerization to yield polybenzoxazines. The commercial benzoxazine resin, B‐a, was used as a benchmark material in this work. B) Biologically occurring phenols were selected as starting materials to introduce novel functionality and properties into designed benzoxazine monomers. C) Bioinspired benzoxazines described in this work contain deprotected catechols prior to curing and are prepared using a silyl ether protecting group strategy.