REVERSIBLE CROSSLINKING DURING THERMAL-DEGRADATION OF PVC

被引:44
作者
KELEN, T
IVAN, B
NAGY, TT
TURCSANYI, B
TUDOS, F
KENNEDY, JP
机构
[1] Central Research Institute for Chemistry of the Hungarian Academy of Sciences, Budapest
关键词
D O I
10.1007/BF00255718
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 undergoes rapid crosslinking during thermal degradation. Diels-Alder addition of conjugated polyenes was proposed as a possible crosslinking mechanism by earlier authors. By the use of conditions favoring retro Diels-Alder reaction of crosslinks (treatment with maleic anhydride at elevated temperature) it was proved that crosslinks are largely reversible. Evidently Diels-Alder addition of the conjugated polyenes plays an important role in crosslinking during thermal degradation of PVC. © 1978 Springer-Verlag.
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收藏
页码:79 / 84
页数:6
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