Mass spectrometric studies on cyclo- and poly-phosphazenes. Part 2. Oligomerization of hexa(aryloxy)cyclotriphosphazatrienes

Abstract

A method of oligomerizing hexa(aryloxy)cyclotriphosphazatrienes to the corresponding oligomers is reported. The oligomerization has been carried out in the ion source of a mass spectrometer, at high vapour pressure of the trimers, and at a temperature of 200 °C. The effects on the oligomerization reaction of experimental parameters, such as temperature, nucleophilicity, electrophilicity, and bulkiness of substituent groups on the trimers, and the presence of acidic species, have been investigated. High reaction temperatures inhibit the oligomerization reaction, leading to the formation of pyrolysis products.