Application width of polymers and their compositions, possibility of the control of their properties according to the demand and other factors cause formation of their waste on a mass scale. Biologically undestructive polymer waste causes worsening of ecological problem and increase of life activity risks. According to development dynamics of existing tendencies in the direction of analyzing of solution ways of ecological problems caused by polymers is mainly as following: · bury of polymer waste; · burning of polymer waste to get energy; · pyrolisis of polymer waste; · purposeful thermocracing of polymer waste; · simple secondary treatment of polymer waste; · modification of polymer waste at a secondary treatment process; · formation of biologically destructive polymer and polymer compositions. Assessment of these solution ways having negative and positive features show positive development dynamics in the researches. Number of composition materials having indices useful for treatment and exploitation have been obtained on the basis of polymer waste modification at secondary treatment. Expediency of this method shows urgency of corresponding researches. It should be mentioned that worsening of ecological problem caused by polymers conditioned intensification of researches in the direction of analysis of compositions and properties of biologically destructive polymer compositions. As a result of these researches aimed to the solution of ecological problem biologically destructive polymer compositions have been obtained. But mass synthesis and use of biologically undestructive polymers during secondary treatment process show urgency of researches in the direction of polymer compositions obtaining by modification method.From other side necessity of satisfying of human’s increasing demands, shortage of initial raw material, expedient use of initial polymer, increase of qualitive and quantative increase of the demand to the materials having indices durable to the influences of various exploitation condition and etc. Problems prove scientific-practical significance of the researches carried out by the mentioned method. According to the explanation providing of biological activity of composition materials obtained during the modification at secondary treatment of polymers can be considered expedient. The following directions of providing of biological activity of composition materials based on exploited polymers are possible: · formation of biologically destructive polymer compositions; · formation of polymer compositions having antimicrobe indices. Analyses of initial use field of the polumer chosen as investigation object, aging and pollution level future use place and other factors make possible to determine providing of biological activity of polymer composition. Analyses show that, low density polyethelene (LDPE) determined as research object is initially durable to iocorrosion and weaking of these indices after initial exploitation. It is explained as the result of structural-chemical transformations. Content and properties of biologically active polymer compositions based on exploited LDPE are studied at the research process.