Abstract
AbstractThermoset polymers result when hexaallylmelamine and related monomers, such as 2,4‐bis(diallylamino)‐6‐piperidino‐s‐triazine, are polymerized with di‐tert‐butyl peroxide or 2,5‐dimethyl‐2,5‐di(tert‐butylperoxy)‐n‐hexane. Advantageous properties of the new systems when filled with glass fabric include high mechanical strength and modulus at elevated temperatures, solvent resistance, and excellent electrical properties, especially dielectric constant, dissipatio factor, and arc resistance. Although glass cloth‐reinforced laminates of the resins are stable to almost 400°C. in nitrogen, oxidatively they are much less stable. Nevertheless, these new resin systems have certain advantages in comparison with silicone resins and should be useful for structural and electrical applications in air to above 200°C.
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