Polysulfones dicyanate

Those studies were extended to include the addition of an organic montmoril-lonite nanoscale filler to the polysulfone/dicyanate mixture (Mondragon et al. 2006). The primary reason for the introduction of the filler is the significant improvement in properties that can be obtained at low clay contents. The exfoliated configuration for the clay is of particular interest in that regard because it maximizes the interactions, making the entire surface of the clay layers available for interactions with the polymer matrix. This should lead to dramatic changes in both mechanical and physical properties. 

Kim et al (1999) examined the morphology and cure of semi-IPN epoxy resin or dicyanate-polyimide/polysulfone-carbon-flbre Aims. Polyimide or polysulfone Aims were inserted into the curing epoxy-dicyanate monomers to form semi-IPNs with sea-island morphology at the thermoset-thermoplastic interface. The final carbon-flbre-thermoplastic-dicyanate Aims had fracture toughness three to five times higher than that of unmodified carbon-flbre-dicyanate composites. 

Hwang et al. (1997) have investigated mixtures of polysulfone with bisphenol A dicyanate, the stmcture of which is shown in Fig. 16.7. 

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