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The research aims to determine how the position of nitrile groups affects the thermal and oxidative stability of benzoxazines.

April 17, 2026Materials Letters XOpen Access

Position effects of nitrile groups on the thermal and oxidative stability of benzoxazines for defense applications

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The research aims to determine how the position of nitrile groups affects the thermal and oxidative stability of benzoxazines.
Synthesis of benzoxazine monomers with nitrile groups at ortho, meta, and para positions.
Systematic evaluation of curing behavior and thermal properties of the synthesized compounds.
Analysis of thermal stability, char yield, and oxidation resistance through flame exposure tests and EDS analysis.
C2-abn achieved a high char yield of 68.49% at 800 °C.
Ortho-nitrile benzoxazine displayed enhanced Mannich bridge formation and higher curing temperature.
C2-abn exhibited a low oxygen content of 18%, indicating superior oxidation resistance.

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Evaluates thermal stability in benzoxazines with nitrile groups, suggesting improved defense materials.

Kim et al. (2026) studied this question.

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