PHOSPHORUS-CONTAINING AND METAL-CONTAINING POLY(ETHYLENE-TEREPHTHALATE) .3. SYNTHESIS OF PHOSPHORUS-CONTAINING AND CADMIUM-CONTAINING POLYMER

被引:4
|
作者
TROEV, K [1 ]
KISIOVA, T [1 ]
GROZEVA, A [1 ]
BORISOV, G [1 ]
机构
[1] D DIMOV CHEM WORKS,RES & DEV PLANT,YAMBOL,BULGARIA
关键词
D O I
10.1016/0014-3057(93)90066-O
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A phosphorus- and cadmium-containing oligomer with ionic bonds was used as comonomer for modification of poly(ethylene terephthalate). With 0.4% P and 1.4% Cd, the modified material has the following characteristics: eta(rel) = 1.392; [COOH], 40.9 mg.eqv./g 10(-6); m.p., 251-degrees; diethylene glycol units, 2.23%; oligomers, 2.53%. The modifier acts as a cocatalyst in the transesterification and polycondensation processes. The modified polymer has significantly improved flame resistance.
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页码:1499 / 1504
页数:6
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