CONTRIBUTION TO THE PHOTOLYSIS OF HYDROPEROXIDES IN POLYETHYLENE

被引：59

作者：

GUGUMUS, F

机构：

[1] Ciba-Geigy Ltd

来源：

POLYMER DEGRADATION AND STABILITY | 1990年 / 27卷 / 01期

关键词：

D O I：

10.1016/0141-3910(90)90094-N

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Free radical formation on photolysis of free hydroperoxides in polyethylene is questioned. Other photolysis mechanisms are proposed instead. They lead to the products observed experimentally, i.e. carbonyl and trans-vinylene groups, without intermediate formation of free radicals. The mechanisms are in agreement with the kinetics of product formation as well as with photolysis data of model peroxides in polyethylene and the effect of stabilizers. They can easily be adapted to polymers other than polyethylene. © 1989.

引用

页码：19 / 34

页数：16

共 19 条

[1] MECHANISM OF PHOTO-INITIATION PROCESS IN POLYETHYLENE [J].

AMIN, MU ;

SCOTT, G ;

TILLEKERATNE, LM .

EUROPEAN POLYMER JOURNAL, 1975, 11 (01) :85-89

[2]

ARNAUD R, 1984, MACROMOLECULES, V17, P332, DOI 10.1021/ma00133a012

[3]

ARNAUD R, 1979, DEV POLYM DEGRADATIO, V2, P159

[4] REACTIONS OF SULFUR-DIOXIDE WITH OXIDIZED POLYOLEFINS [J].

CARLSSON, DJ ;

BROUSSEAU, R ;

WILES, DM .

POLYMER DEGRADATION AND STABILITY, 1986, 15 (01) :67-79

[5]

CARLSSON DJ, 1967, MACROMOLECULES, V2, P5970

[6]

COIFFIER F, 1984, MAKROMOL CHEM, V185, P1095

[7]

DEKOCK RJ, 1964, Z ANAL CHEM, V205, P371

[8] ADVANTAGES AND LIMITS OF HYDROPEROXIDE TITRATION METHODS IN SOLID POLYMERS [J].

GARDETTE, JL ;

LEMAIRE, J .

POLYMER PHOTOCHEMISTRY, 1986, 7 (05) :409-416

[9]

GINHAC JM, 1981, MAKROMOL CHEM, V182, P1017

[10] CONTRIBUTION TO POLYETHYLENE PHOTOOXIDATION [J].

GUGUMUS, F .

ANGEWANDTE MAKROMOLEKULARE CHEMIE, 1988, 158 :151-176

← 1 2 →