Polycondensation Reaction of Tetrachlorodiphenylphosphazene with Aromatic Dihydroxy or Diamino Compounds and Thermal Properties of the Products

Abstract

Tetrachlorodiphenylphosphazene P3NsC14(CeHs)2 (CPP) was synthesized by Freidel-Crafts reaction, and the polycondensation reaction of CPP with aromatic dihydroxy or diamino compounds were carried out in pyridine solvent.
The polycondensation products obtained from the reaction of CPP with dihydroxy compounds were soluble in the most polar organic solvents, and molecular weight of the products was about 1100 to 3400. Since the polycondensation products of CPP an, d using diamine compounds was not suMcently soluble in the most organic solvents, molecular weight of them was unable to measured.
All of the products was amorphous, and had white, yellow, brown or orange color. The softening peint of all of the, products was measured, and it was found that the product obtained from CPP and P, Pr-dihydroxydiphenyl had the higest softening peint about from 260 to 270CC. Consequently, this product seemed to be the most stable for heat. Also, it was found that the products obtained from CPP and bisphenol-A or P, PLdihydroxydiphenylsulfonehad three dimentional network structure, though the other products had linear structure.