“…[6,7] The molecular structure of polybenzoxazine offers enormous design flexibility, which allows the properties of the cured materials to be tailored for a wide range of application. [8] The newly developed resins possess unique features, namely (a) near zero volumetric change upon curing, (b) no strong acid catalyst is required for curing, (c) release of no byproducts during curing, [9][10][11] (d) low water absorption, (e) for some polybenzoxazine-based materials, T g is much higher than cure temperature, (f) high char yield, (g) excellent resistance to chemicals and UV light, (h) thermal and dimensional stability, and (i) superior electrical properties. [12][13][14] Benzoxazine monomers are typically synthesized using phenol, formaldehyde, and amine (aliphatic or aromatic) [15] as starting materials either by employing solution or solvent-less method.…”