POLYMERIZATION OF ETHYLENE USING A HIGH-ACTIVITY ZIEGLER-NATTA CATALYST .1. KINETIC-STUDIES

被引：29
|
作者：
MARQUES, MMV
NUNES, CP
TAIT, PJT
DIAS, AR
机构：
[1] INST SUPER TECN,CTR QUIM ESTRUTURAL,AV ROVISCO PAIS,P-1096 LISBON,PORTUGAL
[2] CO NACL PETROQUIM,SINES,PORTUGAL
[3] UNIV MANCHESTER,INST SCI & TECHNOL,DEPT CHEM,MANCHESTER M60 1QD,LANCS,ENGLAND
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1993年 / 31卷 / 01期
关键词：
POLYMERIZATION; ZIEGLER-NATTA; CATALYSIS; ETHYLENE; KINETIC;
D O I：
10.1002/pola.1993.080310125
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Factors affecting the particular shape of kinetic rate-time profiles in the polymerization of ethylene with a MgCl2-supported TiCl4 catalyst activated by Al (C2H5)3 have been investigated. Examination of the dependence of the polymerization rate on the concentration of Al (C2H5)3 resulted in a Langmuir-Hinshelwood rate law. Analysis of the polymerization rate as a function of the polymerization temperature gave about 46 kJ mol-1 for the overall activation energy. Examination of the rapid decay of the polymerization rate with time showed that this decay is represented better by a first-order decay law than by a second-order one.
引用
收藏
页码：209 / 218
页数：10
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