Synthesis and thermal behaviour of thiophene-based oxazine-ring substituted benzoxazine monomers & polymers

The latest fourth-generation oxazine-ring substituted thiophene-based benzoxazine monomers and polymers with variation in the degree of phenyl substitution (with and without) in the oxazine-ring were synthesized and characterized. Thiophene-based di-substituted benzoxazine undergoes ring-opening polymerization at a low temperature with a minimal mass loss during polymerization as supported by molecular geometry-guided intramolecular interactions. This class of monomers provides ample opportunities to design at the molecular level high-performance polybenzoxazines with promising smart applications.

Automated summary

In this study, the latest fourth-generation oxazine-ring substituted thiophene-based benzoxazine monomers and polymers were synthesized and characterized. It was found that thiophene-based di-substituted benzoxazine undergoes ring-opening polymerization at low temperature with minimal mass loss. These materials provide ample opportunities for molecular-level design of high-performance polybenzoxazines with promising smart applications.