THE PHOTOOXIDATION OF EPDM RUBBER .2. THE PHOTOINITIATION PROCESS

被引：18

作者：

DUEK, ER ^{[1
]}

JULIANO, VF ^{[1
]}

GUZZO, M ^{[1
]}

KASCHERES, C ^{[1
]}

DEPAOLI, MA ^{[1
]}

机构：

[1] UNIV ESTADUAL CAMPINAS,INST QUIM,C POSTAL 6154,BR-13081 CAMPINAS,SP,BRAZIL

来源：

POLYMER DEGRADATION AND STABILITY | 1990年 / 28卷 / 03期

关键词：

D O I：

10.1016/0141-3910(90)90066-G

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

Mechanistic aspects of the photo-oxidation of EPDM rubber are discussed. According to our results the photo-initiation step is undoubtedly due to impurities present in the crude rubber. These impurities include aliphatic and aromatic phenols, ethers, esters and ketones. The initiation step of a known impurity, viz. benzophenone, was studied. Although the mechanism of formation of the oxidation products is similar to that of other unsaturated rubbers a regeneration of the initiator in the absence of light is observed in contrast to other hydrocarbon polymers. This behavior is attributed to the presence of the ethylidene norbornene unit. © 1990.

引用

页码：235 / 248

页数：14

共 9 条

[1]

MECHANISM OF PHOTOOXIDATION OF AN ELASTOMER [J].

BOUSQUET, JA ;

FOUASSIER, JP .

POLYMER DEGRADATION AND STABILITY, 1983, 5 (02) :113-133

[2]

PHOTOCROSSLINKING OF ELASTOMER SYSTEMS .3. ULTRAVIOLET-LIGHT INDUCED REACTIONS IN EPDM AND ELECTRON-PARAMAGNETIC-RES BLENDED WITH OR MODIFIED BY GRAFTING OF DERIVATIVES OF BENZOPHENONE [J].

BOUSQUET, JA ;

HAIDAR, B ;

FOUASSIER, JP ;

VIDAL, A .

EUROPEAN POLYMER JOURNAL, 1983, 19 (02) :135-142

[3]

THE CHEMICAL EFFECTS OF PHOTOOXIDATION ON BUTADIENE RUBBER [J].

DEPAOLI, MA .

EUROPEAN POLYMER JOURNAL, 1983, 19 (09) :761-768

[4]

DEPAOLI MA, 1988, POLY DEG STAB, V21, P217

[5]

NEW ASPECTS OF THE PHOTOOXIDATION OF POLYOLEFINS [J].

GEUSKENS, G ;

DEBIE, F ;

KABAMBA, MS ;

NEDELKOS, G .

POLYMER PHOTOCHEMISTRY, 1984, 5 (1-6) :313-331

[6]

GEUSKENS G, 1982, POLYM DEGRAD STABIL, V4, P69, DOI 10.1016/0141-3910(82)90007-6

[7]

GEUSKENS G, 1982, POLY DEG STAB, V5, P399

[8]

THE CHEMICAL EFFECTS OF PHOTO-OXIDATION ON ISOPRENE RUBBER [J].

RODRIGUES, MA ;

DEPAOLI, MA .

EUROPEAN POLYMER JOURNAL, 1985, 21 (01) :15-23

[9]

Schnabel W., 1981, POLYM DEGRADATION PR, V1st ed.

← 1 →