Abstract
Two cyanate ester monomers (CEMs) based on oligomeric aryl ether (OAE) derivatives of bisphenol AF and bisphenol A, with multiple reactive cyanate groups, were developed as technologically highly relevant thermosets. These CEMs are liquids processable at room temperature and can be crosslinked by cyclotrimerization of the cyanate groups to form extended polycyanurate (PC) networks at lower temperatures ( 2808C), with excellent thermal, mechanical, and dielectric properties. PC nanorods with diameters of 65 or 380 nm could be moulded in porous alumina templates from the OAE-CEMs. The high aspect ratio nanorods with a length in the order of 100 mm were hydrolytically stable upon extended exposure to boiling water.
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