INFRARED EVIDENCE FOR THE GRAFTING OF ESTER GROUPS ON POLYVINYL-CHLORIDE STABILIZED BY ZINC AND CALCIUM STEARATES

被引:19
作者
BARTHOLIN, M [1 ]
BENSEMRA, N [1 ]
HOANG, TV [1 ]
GUYOT, A [1 ]
机构
[1] CNRS,MATERIAUX ORGAN LAB,BP 24,F-69390 VERNAISON,FRANCE
关键词
D O I
10.1007/BF00294873
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Careful FTIR analysis of PVC samples heated in trichlorobenzene solution at 187°C in the présence of mixture of zinc and calcium stearates for various times were carried out. A special accessory allowing identical flushing of several samples with dry nitrogen was used. The samples were thoroughly purified before examination. The very weak carbonyl absorption, after an initial decrease, increases as a sharp band near 1734 cm-1 progressively shifting towards lower wave numbers and then decreases with simultaneous broadening. A corresponding C-H band is seen near 2850 cm-1. © 1990 Springer-Verlag.
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页码:425 / 430
页数:6
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