ON THE RELATIONSHIP BETWEEN CHEMICAL-STRUCTURE AND INDUCTION PERIOD OF IGNITION OF SOME AROMATIC POLYMERS IN A LASER-RADIATION FIELD

The aim of this study was to test the efficiency of methods for impart ing incombustibility to aromatic heterochain polymers by chemical modi fication with metal compounds, halogenation, or creation of a rigid ne twork via crosslinking or introducing bulky chemical groups into the p olymer chain. It was shown that all of these methods of increasing the flame resistance of polymers retain their efficiency to various degre es under conditions of laser ignition. Chemical modification with halo gens, in particular, bromine, is the most effective method.