INFLUENCE OF ORIENTATION ON THE PHOTOOXIDATION OF POLY(VINYL CHLORIDE)

被引：12

作者：

BELLENGER, V ^{[1
]}

VERDU, J ^{[1
]}

MARTINEZ, G ^{[1
]}

MILLAN, J ^{[1
]}

机构：

[1] CSIC,INST CIENCIA & TECHNOL POLIMEROS,E-29006 MADRID,SPAIN

来源：

POLYMER DEGRADATION AND STABILITY | 1990年 / 28卷 / 01期

关键词：

D O I：

10.1016/0141-3910(90)90051-8

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

PVC films were oriented by stretching above Tg at elongation ratios ranging from 1 to 8, and quenched under tension. Their photo-oxidation rates in the solar UV range (γ≥300 nm), were then compared with those of control samples of the same thickness. It appeared clearly that the photo-sensitivity increases with the degree of orientation characterized by infrared dichroism. This result was explained in terms of build-up, during stretching, of conformations which are especially reactive towards hydrogen abstraction by radicals. © 1990.

引用

页码：53 / 65

页数：13

共 19 条

[1] THE EFFECT OF ORIENTATION ON THE RADIATION-INDUCED DEGRADATION OF POLYMERS [J].

AKAY, G ;

TINCER, T ;

AYDIN, E .

EUROPEAN POLYMER JOURNAL, 1980, 16 (07) :597-600

[2]

[Anonymous], 1959, J CHEM ENG DATA, DOI DOI 10.1021/JE60001A009

[3]

BELLENGER V, IN PRESS

[4]

CARLSSON DJ, 1978, ADV CHEM SER, V169, P56

[5] INFLUENCE OF STRUCTURE ON THE PHOTO-DEGRADATION OF PVC .2. A PRELIMINARY APPROACH TO THE STUDY OF PHOTO-OXIDATION AND OF THE QUANTUM YIELD OF DEHYDROCHLORINATION [J].

CASTILLO, F ;

MARTINEZ, G ;

SASTRE, R ;

MILLAN, J ;

BELLENGER, V ;

VERDU, J .

POLYMER DEGRADATION AND STABILITY, 1985, 13 (03) :211-224

[6]

CASTILLO F, IN PRESS POLY DEG ST

[7] DEFECTS IN THE MOLECULAR-STRUCTURE OF POLYVINYLCHLORIDE AND THEIR RELATION TO THERMAL-STABILITY [J].

GUYOT, A .

PURE AND APPLIED CHEMISTRY, 1985, 57 (06) :833-844

[8] THERMAL-DEGRADATION OF POLYVINYL-CHLORIDE .6. INITIAL STAGES - PRELIMINARY GENERAL STUDY [J].

GUYOT, A ;

BERT, M .

JOURNAL OF APPLIED POLYMER SCIENCE, 1973, 17 (03) :753-768

[9] EFFECT OF MORPHOLOGY ON THE PHOTOOXIDATION OF POLYPROPYLENE FILMS [J].

LAMANTIA, FP ;

SPADARO, G ;

ACIERNO, D .

POLYMER PHOTOCHEMISTRY, 1985, 6 (06) :425-435

[10] STEREOSELECTIVE SUBSTITUTION ON PVC USING PHASE-TRANSFER CATALYSTS [J].

MARTINEZ, G ;

MIJANGOS, C ;

TERROBA, P ;

MILLAN, J .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1988, 26 (06) :1629-1637

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