caa a22 4500 465807771 CHVBK 20180323112107.0 cr unu---uuuuu 170327e19900901xx s 000 0 eng 10.1007/BF00529973 doi (NATIONALLICENCE)springer-10.1007/BF00529973 Quantum-chemical analysis of the mechanism of action of sterically hindered amines in photostabilization of polyolefins [Elektronische Daten] [A. Bolotin, B. Gorbunov, A. Efimov, P. Pipiraite, A. Ruzhene] A quantum-chemical study was made of the reaction of sterically hindered amines with the degradation products of polyolefins. The reactivity indices of these compounds and the formation energies of their reaction products were calculated by the semiempirical CNDO/2 and MINDO/3 methods. The mechanism of the photostabilizing action of sterically hindered amines was substantiated theoretically. The criteria by means of which it is possible to determine their relative reactivities were established, and the role of the substituent was determined. The results are compared with experimental data on the photostabilizing effectiveness of these compounds. Plenum Publishing Corporation, 1990 Bolotin A. Scientific-Research Institute of Chemicals for Polymeric Materials, Tambov aut Gorbunov B. Scientific-Research Institute of Chemicals for Polymeric Materials, Tambov aut Efimov A. Scientific-Research Institute of Chemicals for Polymeric Materials, Tambov aut Pipiraite P. Scientific-Research Institute of Chemicals for Polymeric Materials, Tambov aut Ruzhene A. Scientific-Research Institute of Chemicals for Polymeric Materials, Tambov aut Theoretical and Experimental Chemistry Kluwer Academic Publishers-Plenum Publishers 25/5(1990-09-01), 545-548 0040-5760 25:5<545 1990 25 11237 https://doi.org/10.1007/BF00529973 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00529973 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bolotin A. Scientific-Research Institute of Chemicals for Polymeric Materials, Tambov aut NATIONALLICENCE 700 1- Gorbunov B. Scientific-Research Institute of Chemicals for Polymeric Materials, Tambov aut NATIONALLICENCE 700 1- Efimov A. Scientific-Research Institute of Chemicals for Polymeric Materials, Tambov aut NATIONALLICENCE 700 1- Pipiraite P. Scientific-Research Institute of Chemicals for Polymeric Materials, Tambov aut NATIONALLICENCE 700 1- Ruzhene A. Scientific-Research Institute of Chemicals for Polymeric Materials, Tambov aut NATIONALLICENCE 773 0- Theoretical and Experimental Chemistry Kluwer Academic Publishers-Plenum Publishers 25/5(1990-09-01), 545-548 0040-5760 25:5<545 1990 25 11237 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer