METHOD FOR MASS POLYCONDENSATION OF N-DICHLOROPHOSPHORYL- OR N-DICHLOROTHIOPHOSPHORYL-P-TRICHLOROPHOSPHAZENE

摘要

The invention relates to a process for the bulk polycondensation of N-dichlorophosphoryl- or N-dichlorothiophosphoryl-P-trichlorophosphazene. This process consists in carrying out the polycondensation, with stirring, in a reactor equipped with of a system preventing the accumulation of polycondensate on the stirrer. / P P It is thus possible to obtain polycondensates of very high molecular weight without crosslinking. / P