A theoretical approach to network formation by cyclotrimerization is p
resented which allows a full description of all network characteristic
s. Its application to trimerization of bisphenol-A dicyanate(a)) shows
full agreement between theoretical predictions and experimental data.
Cyanate analysis was accomplished by means of Fourier transform infra
red spectroscopy and a photometric method. The experimental gel point
(at conversion 50,4%) was in close agreement with theoretical predicti
ons.