REACTION BETWEEN POLYESTERS AND PHOSPHORUS-COMPOUNDS IN THE MOLTEN STATE

被引:4
|
作者
JACQUES, B [1 ]
LEGRAS, R [1 ]
DEVAUX, J [1 ]
NIELD, E [1 ]
机构
[1] ICI PLC,DIV PAINTS,SLOUGH SL2 5DS,ENGLAND
关键词
D O I
10.1002/masy.19930750124
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The reactions occurring between polyesters and phosphorus compounds in the molten state are investigated. A large molecular weight increase is observed in blends of Poly(ethylene terephtalate) and Poly(butylene terephtalate) after triphenyl phosphite addition. The formation of links containing phosphorus atoms between the polyester chain ends has been established. The weakness of this bond makes the observations difficult. An effect of phosphite on promoting the direct esterification between chain ends is suggested but not definitely proved yet.
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页码:231 / 236
页数:6
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