Studies in the field of obtaining biologically active polymer compositions from exploited low density polyethylene Rahima S. Mammadova Azerbaijan State Pedagogiocal University, Azerbaijan Republic The growth dynamics of the demand for materials for sustainable development requires a rational evaluation of alternative sources of raw materials. In this regard, the return of polymers to the recycling process is considered as an urgent issue. The fact that the issue is also important from the point of view of ecology and energy increases its relevance. For these reasons intensive research works are carried out in the relevant field based on primary sources. Studies show that the indicators of the polymer are weakened by various effects of the exploitation conditions, including microbiological effects. Although low-density polyethylene (LDPE) was initially considered to be resistant to microbiological effects, in the last decades there have been studies that disprove this fact. It also depends on the influencing factors of the exploitation conditions. On the other hand, the formation of structural- chemical changes and cracks caused by the influence of the exploitation conditions factors results in a decrease in resistance to the influence of microorganisms. The products of the life activity of microorganisms also affect the dynamics of polymer aging processes. This can lead to a decrease in the reliable service life of the polymer product, and in some cases, an increase in risks probability. What has been mentioned shows the expediency of ensuring the biological activity of the polymer aimed at reuse. In this presented research, information on some investigations conducted in the direction of efficient reuse of LDPE is given. Study of the content and properties of various used LDPE coatings based biologically active polymer compositions was aimed in the research process. Reusable polymer compositions were obtained by adding compounds containing elements and fragments that provide biological activity to the matrix. Depending on the nature of the interaction between the used LDPE and the modifying compound, it was possible to control the parameters of the obtained polymer compositions. Biological activity can be controlled by both the amount of relevant elements and fragments in the added compounds and their size. In the process of ensuring biological activity, as a result of crosses with a modifying compound, polymer compositions with better physical and mechanical indicators were obtained. Key words: exploited polyethylene, biologically active polymer composition, biological activity control, microbiological effects, polymer recycling. References 1. Kamaruzzaman, N. F., Tan, L. P., Hamdan, R. H., Choong, S. S., Wong, W. K., Gibson, A. J., Chivu, A., & Pina, M. F.. Antimicrobial Polymers: The Potential Replacement of Existing Antibiotics?. International journal of molecular sciences, 2019, 20(11), 2747. https://doi.org/10.3390/ijms20112747 2. Rahima S. Mammadova. Research of application possibilities of biomass used as biologically active additive in polymer compositions / Journal of Physical Chemistry & Biophysics, ISSN 2161-0398, 2020, Vol.10 No.04 3. Rahima S. Mammadova. The importance of a purposeful approach to ensure the biological activity of polymer compositions. Chemical Sciences Journal ISSN: 2150-3494.p.12, Received: 13th September, 2022 | Accepted: 16th September, 2022 | Published: 07th December 2022. 4. R.S.Məmmədova.Patent İ 2020 0073( Azerbaijan Republic) Polimer kompozisiyası
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