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

IF 0.9 4区 化学 Q4 CHEMISTRY, PHYSICAL
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
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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.

Abstract Image

伽马辐照和辐照后高温剪切研磨聚丙烯的功能化及其毒性特性
摘要 介绍了对聚丙烯(PP)进行伽马辐照和辐照后高温剪切研磨的傅立叶变换红外光谱研究结果。在空气中辐照的聚丙烯颗粒的红外光谱显示了含羟基和含氧基团的吸收峰,而在研磨辐照聚合物颗粒后得到的粉末中,这些吸收峰的强度明显降低。对通过高温剪切研磨辐照聚合物颗粒获得的聚丙烯的毒性特性进行了研究。结果发现,在空气中对聚合物颗粒进行伽马射线辐照不会影响通过研磨辐照剂量为 700-4500 kGy 的颗粒而获得的聚合物粉末的毒性特性。结果表明,用未经辐照和经过辐照的粒料制成的聚丙烯粉末给 BDF1 小鼠灌胃,其毒性为中度。
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来源期刊
High Energy Chemistry
High Energy Chemistry 化学-物理化学
CiteScore
1.50
自引率
28.60%
发文量
62
审稿时长
6-12 weeks
期刊介绍: High Energy Chemistry publishes original articles, reviews, and short communications on molecular and supramolecular photochemistry, photobiology, radiation chemistry, plasma chemistry, chemistry of nanosized systems, chemistry of new atoms, processes and materials for optical information systems and other areas of high energy chemistry. It publishes theoretical and experimental studies in all areas of high energy chemistry, such as the interaction of high-energy particles with matter, the nature and reactivity of short-lived species induced by the action of particle and electromagnetic radiation or hot atoms on substances in their gaseous and condensed states, and chemical processes initiated in organic and inorganic systems by high-energy radiation.
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