Functionalization of polypropylene subjected to gamma-irradiation and postradiation high-temperature shear grinding and its toxic properties

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Abstract

The results of FT-IR spectral study of polypropylene (PP) subjected to gamma irradiation and postradiation high-temperature shear milling are presented. Absorption peaks of hydroxyl and oxygen-containing groups appear in the IR spectra of air-irradiated PP pellets, the intensity of which decreases markedly in the powder obtained after grinding of irradiated polymer pellets. Toxic properties of PP obtained by grinding by high-temperature shear milling of irradiated polymer pellets were investigated. It was shown that gamma-irradiation of polymer pellets in air has no effect on toxic properties of its powder obtained by grinding of irradiated pellets with 700–4500 kGy dose. It was found that when administered intragastrically to BDF mice1 PP powder from non-irradiated and irradiated granules is moderately toxic.

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About the authors

U. Y. Allayarova

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS

Email: sadush@icp.ac.ru
Russian Federation, Chernogolovka

S. R. Allayarov

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS

Author for correspondence.
Email: sadush@icp.ac.ru
Russian Federation, Chernogolovka

S. V. Demidov

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS

Email: sadush@icp.ac.ru
Russian Federation, Chernogolovka

R. K. Baimuratova

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS

Email: sadush@icp.ac.ru
Russian Federation, Chernogolovka

S. D. Chekalina

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS; Lomonosov Moscow State University

Email: sadush@icp.ac.ru
Russian Federation, Chernogolovka; Moscow

D. V. Mishchenko

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS; Lomonosov Moscow State University

Email: sadush@icp.ac.ru
Russian Federation, Chernogolovka; Moscow

E. N. Klimanova

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry RAS

Email: sadush@icp.ac.ru
Russian Federation, Chernogolovka

A. B. Abdusalamov

The State Committee of Industrial Safety of the Republic of Uzbekistan

Email: sadush@icp.ac.ru
Uzbekistan, Tashkent

D. A. Dixon

University of Alabama

Email: sadush@icp.ac.ru

Department of Chemistry

United States, Tuscaloosa, Alabama

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Supplementary files

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2. Fig. 1. General view and extended FTIR spectra of non-irradiated (a) and γ-irradiated PP granules (b, c, d), as well as powder obtained by milling pre-γ-irradiated polymer granules (e, f, g, h). γ-irradiation dose (kGy): 0 (a, e), 700 (b, f), 2100 (c, g), 4500 (d, h).

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3. Fig. 2. General view and extended XPS spectra of non-irradiated (a) and 120 kGy PP granules (b).

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