FLAMMABILITY OF MACROCYCLIC POLYMERS AND THEIR COMPLEXES WITH METALS

The peculiarities of thermal degradation and the flammability of nitro gen-containing macrocyclic polymers have been investigated. It has bee n shown that the thermal and thermo-oxidative stability of these polym ers depend on the structure of the macrocycle,the type of organic radi cals of the main unit and the metal nature. The effect of the type of pi-conjugated macromolecules, as well as of the planarity and symmetry of macrocycle,on thermal stability as well as flammability of macrocy clic polymers has been studied. Metals (Cu, Co, Ni) in the coordinatio n sphere increase the thermal stability and decrease the thermo-oxidat ive degradation of macrocyclic polymers.