THE OXIDATIVE-DEGRADATION OF ETHYLENE VINYL ALCOHOL COPOLYMERS

被引：23

作者：

CARLSSON, DJ ^{[1
]}

CHMELA, S ^{[1
]}

WILES, DM ^{[1
]}

机构：

[1] SLOVAK ACAD SCI,INST POLYMER,CS-80936 BRATISLAVA,CZECHOSLOVAKIA

来源：

POLYMER DEGRADATION AND STABILITY | 1991年 / 31卷 / 03期

关键词：

D O I：

10.1016/0141-3910(91)90037-R

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The oxidative behavior of ethylene/vinyl alcohol copolymers has been examined after initiation by gamma-irradiation. Oxidation products were identified and quantified by infrared spectroscopy after the use of selective derivatization reactions which allowed the resolution of the various alcohol, hydroperoxide and carbonyl species produced. Extensive preferential attack at the [GRAPHICS] sites was observed to give backbone ketone and probably hydrogen peroxide. The latter was not unambiguously identified or quantified because of its volatility. The derivatization techniques failed at vinyl alcohol levels above 20 wt%, probably because of the low gas permeability of these films. Implications of the observed products to the oxidation of polyethylene are discussed.

引用

页码：255 / 267

页数：13

共 14 条

[1] STABILIZATION OF POLYPROPYLENE TO GAMMA-INITIATED OXIDATION [J].

BECKER, RF ;

CARLSSON, DJ ;

COOKE, JM ;

CHMELA, S .

POLYMER DEGRADATION AND STABILITY, 1988, 22 (04) :313-323

[2]

Blackwell A.L., 1986, HIGH PERFORM POLYM, P425

[3]

BRANDRUP J, 1975, POLYM HDB, P195

[4]

CARLSSON DJ, 1988, ACS SYM SER, V364, P376

[5] POLYOLEFIN OXIDATION - QUANTIFICATION OF ALCOHOL AND HYDROPEROXIDE PRODUCTS BY NITRIC-OXIDE REACTIONS [J].

CARLSSON, DJ ;

BROUSSEAU, R ;

ZHANG, C ;

WILES, DM .

POLYMER DEGRADATION AND STABILITY, 1987, 17 (04) :303-318

[6] OXIDATION OF SOLID POLYETHYLENE FILMS - EFFECTS OF BACKBONE BRANCHING [J].

CARLSSON, DJ ;

BAZAN, G ;

CHMELA, S ;

WILES, DM ;

RUSSELL, KE .

POLYMER DEGRADATION AND STABILITY, 1987, 19 (03) :195-206

[7]

DULOG L, 1968, MAKROMOL CHEM, V120, P123

[8] TRANSMISSION SPECTRA WITHOUT INTERFERENCE-FRINGES [J].

HARRICK, NJ .

APPLIED SPECTROSCOPY, 1977, 31 (06) :548-549

[9] ESR STUDIES OF PEROXY RADICALS IN POLYETHYLENE .1. TEMPERATURE-DEPENDENCE OF SPECTRA AND MOLECULAR-MOTION OF RADICAL SITES [J].

HORI, Y ;

SHIMADA, S ;

KASHIWABARA, H .

POLYMER, 1977, 18 (06) :567-572

[10]

HOWARD JA, 1984, LANDOLTBORNSTEIN N D, V2, P206

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