Functionalization of Polypropylene Subjected to Gamma-Irradiation and Postradiation High-Temperature Shear Grinding and Its Toxic Properties

期刊论文
发表日期：

2024年7月23日

查看全文

U. Yu. Allayarova,
S. R. Allayarov,
S. V. Demidov,
R. K. Baimuratova,
S. D. Chekalina,
D. V. Mishchenko,
E. N. Klimanova,
A. B. Abdusalamov,
D. A. Dixon

摘要

Abstract

The results of a Fourier-transform IR spectroscopic study of polypropylene (PP) subjected to gamma-irradiation and post-irradiation high-temperature shear grinding are presented. The IR spectra of PP granules irradiated in air exhibited absorption peaks of hydroxyl and oxygen-containing groups, the intensity of which noticeably decreased in the powder obtained by grinding the irradiated polymer granules. The toxic properties of PP obtained by high-temperature shear grinding of irradiated polymer granules were investigated. It was found that gamma-irradiation of polymer granules in air did not affect the toxic properties of polymer powder obtained by grinding granules irradiated with a dose of 700−4500 kGy. It was established that PP powder obtained from unirradiated and irradiated granules was a moderately toxic substance when administered intragastrically to BDF₁ mice.