Radiooxidation of fluoropolymers:: Identification of oxidation products

被引：13

作者：

Boullier, I ^{[1
]}

Esnouf, S ^{[1
]}

Le Moël, A ^{[1
]}

机构：

[1] Ecole Polytech, DSM DRECAM LSI, UMR 7642, F-91128 Palaiseau, France

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2003年 / 41卷 / 13期

关键词：

fluoropolymers; irradiation; ageing; oxidation; FT-IR; derivatization methods; model compounds;

D O I：

10.1002/polb.10499

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Radiation effects on fluoropolymers induced by high-energy irradiation were investigated. Poly(fluorovinylidene-co-hexafluoropropylene) [P(VDF-HFP)] films were irradiated with gamma rays in air. Peroxy radicals formed by irradiation in the presence of oxygen were partially converted into more stable products such as hydroperoxides, alcohols, and acids. These oxidation products were identified by Fourier transform infrared spectroscopy. Specific chemical treatments were carried out to identify and separate overlapping absorption bands. Model compounds were also used. On the basis of the results, a mechanism of degradation for gamma-irradiated P(VDF-HFP) is proposed. (C) 2003 Wiley Periodicals, Inc.

引用

页码：1509 / 1517

页数：9

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