2,2-Bis-4-cyanatophenyl propane

Specialty polymers Aerospace composites Primaset BADCY, PT-resins Matrimid Kapton Avimid 2,2-Bis(4-cyanatophenyl) propane and oligomers, Novolac cyanates Nonmelting polyimides Lonza, Switzerland Ffuntsman, USA DuPont, USA Mitsui, Japan... 

BPA/DC— Bisphenol A dicyanate 2,2-bis(4-cyanatophenyl)propane BMI — bismaleimide bis(4-maleimidophenyl)methane... 

The cyclotrimerization of aromatic dicyanato monomers to create highly aromatic network with cyanurate branchpoints is far more prevalent. In a typical reaction, monomers such as 2,2-bis(4-cyanatophenyl) propane are heated in the presence of a catalyst to form a network ... 

It appears that 1,3,5-triazine branchpoint polymers with the shortest identical length segments are those made from bisphenol derivatives. Commercially available monomers that may be polymerized to a network through trimerization brought about by heat curing in the presence of an appropriate catalyst, are 2,2-bis(4-cyanatophenyl) propane, 1,1-bis (4-cyanatophenyl) ethane... 

Scheme 12. Polycyanurates were formed through thermal polymerization of (19) with 2,2-bis(4-cyanatophenyl)propane with curing onset temperature of around 100 C. Several ratios of the two components were investigated. Thermal analysis showed increased mass loss with increasing organic content, which is a function of the dilution of the phosphazene. Further, the Tgs followed the same trend for the cured polymeric materials.

The physical properties of the blends and mechanical/fracture characteristics of their carbon fiber composites in the case of a commercial cyanate/bismaleim-ide blend could be substantially enhanced by incorporation of propenyl functional cyanate ester which is capable of leading to linked IPNs. Various blends of a commercial BMI mixture (i.e., compimide-353, components shown in Scheme 22), a cyanate ester (AroCy B-30), and a comonomer with allyl group, typically 2,2-bis(3-allyl-4-cyanatophenyl) propane (BACP) or one with propenyl... 

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