CHARACTERIZATION OF SOLVENT-EXTRACTABLE TRANSFORMATION PRODUCTS OF HIGH-MOLECULAR-WEIGHT HINDERED PHENOLS IN POLYPROPYLENE SUBJECTED TO IONIZING-RADIATION IN AIR OR TO THERMAL AGING

被引：33

作者：

ALLEN, DW

CLENCH, MR

CROWSON, A

LEATHARD, DA

机构：

[1] Division of Chemistry, School of Science, Sheffield Hallam University, Sheffield, S1 1WB, Pond Street

来源：

POLYMER DEGRADATION AND STABILITY | 1993年 / 39卷 / 03期

关键词：

D O I：

10.1016/0141-3910(93)90004-3

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A range of transformation products derived from high molecular weight 2,6-di-t-butylphenol-based antioxidants (Irganox 1010, Irganox 1076, and Irganox 1330) present in polypropylene subjected to ionising radiation (electron beam- or gamma-radiation, 50 kGy) in air, has been characterised by linked HPLC-diode array-mass spectrometric techniques. Some of the irradiation-derived transformation products were not detected in related thermally oxidised polymers. Evidence is presented of the formation of a range of reductive cleavage products derived from Irganox 1010, and also of the formation of transformation products derived from Irganox 1076 and Irganox 1330 in which loss of t-butyl groups has occurred.

引用

页码：293 / 297

页数：5

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