THERMAL AND X-RAY-INVESTIGATIONS OF ETHYLENE-ALPHA-OLEFIN COPOLYMERS OBTAINED WITH HIGHLY-ACTIVE SUPPORTED TI-MG AND V-MG CATALYSTS

被引：3

作者：

ECHEVSKAYA, LG ^{[1
]}

ZAKHAROV, VA ^{[1
]}

MARATHE, S ^{[1
]}

SEHRA, JC ^{[1
]}

JOG, JP ^{[1
]}

SIVARAM, S ^{[1
]}

机构：

[1] NATL CHEM LAB,DIV POLYMER CHEM,POONA 411008,INDIA

来源：

POLYMER INTERNATIONAL | 1994年 / 33卷 / 01期

关键词：

COPOLYMERS; ETHYLENE; ALPHA-OLEFINS; TRANSITION METAL CATALYSTS; THERMAL STABILITY; CRYSTALLIZATION;

D O I：

10.1002/pi.1994.210330113

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Copolymers of ethylene with propylene, butene-l and hexene-l were prepared using a titanium-magnesium (TMC) or a vanadium-magnesium catalyst (VMC). The copolymers were examined for thermal stability by TGA, melting and crystallization behaviour by DSC and crystallinity by XRD. Fractionated samples of ethylene-hexene-1 copolymers were also similarly characterized. Results indicate that VMC produces copolymers with a higher degree of crystallinity and greater compositional homogeneity than TMC.

引用

页码：111 / 114

页数：4

共 18 条

[1]

ABIS L, 1977, MAKROMOL CHEM, V187, P1877

[2]

BAULIN AA, 1980, VYSOKOMOL SOEDIN A+, V22, P1486

[3] HOMOPOLYMERIZATION AND COPOLYMERIZATION WITH A HIGHLY-ACTIVE ZIEGLER-NATTA CATALYST [J].