4137-68-2

Upstream product

• 1253293-83-2 1,3,5-tris(1-(4-methoxyphenyl)ethyl)benzene 
• 1253293-82-1 1,3,5-tris(1-(4-methoxyphenyl)vinyl)benzene 
• 1779-49-3 Methyltriphenylphosphonium bromide 
• 18096-70-3 3-(dimethylamino)-1-(4-methoxyphenyl)prop-2-en-1-one 
• 73172-23-3 benzene-1,3,5-triyltris[(4-methoxyphenyl)methanone] 
• 100-06-1 1-(4-methoxyphenyl)ethanone 

Downstream Products

• 1253293-84-3 1,3,5-tris(1-(4-cyanatophenyl)ethyl)benzene 

Relevant academic research and scientific papers

Liquid cyanate esters

A method for making liquid cyanate esters and liquid cyanate esters. Embodiments of the invention address the problems with solid cyanate esters by creating new cyanate ester structures that are liquid at room temperature. These liquid cyanate esters may be useful for the typical composite fabrication methods including, but not limited to, infusion molding, prepeg consolidation, resin and vacuum transfer molding.

A new room-temperature liquid, high-performance tricyanate ester

A new tricyanate ester monomer of a tris(4-hydroxyphenyl)benzene derivative was synthesized in 6-steps with a 63% overall yield. The geminal substitution of phenyl rings on ethane, in addition to the creation of a racemic/ diastereomeric mixture, resulted in a liquid monomer whereas compounds with similar structure and symmetry have melting points typically over 100 °C. Key properties of the polycyanurate, such as the glass transition temperature and moisture resistance, were positively influenced by the higher crosslink density provided by the monomer.