Highly active and stereospecific catalyst based on beta-TiCl3 for propylene polymerization

被引：4
|
作者：
Costa, MAS
Silva, ALSS
Coutinho, FMB
Maria, LCD
Pereira, RA
机构：
[1] UNIV FED RIO DE JANEIRO,INST MACROMOL PROF ELOISA MANO,BR-21945 RIO JANEIRO,BRAZIL
[2] ESCOLA FED ENGN ITAJUBA,INST CIENCIAS,BR-37500000 ITAJUBA,MG,BRAZIL
[3] CTR BRASILEIRO PESQUISAS FIS,XRAY LAB,BR-22290180 RIO JANEIRO,BRAZIL
来源：
POLYMER | 1996年 / 37卷 / 05期
关键词：
D O I：
10.1016/0032-3861(96)87267-3
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 method was developed to prepare a crystalline structure of beta-TiCl3 (brown) using an electron-donor compound as an internal Lewis base, namely, diisoamyl ether (DIAE). beta-TiCl3 combined with triethylaluminium (TEA) resulted in highly active and stereospecific catalyst systems close to those based on violet TiCl3 (alpha-, gamma- or delta-TiCl3) for propylene polymerization. Thr influence of solvent and amount of Lewis base employed in the catalyst synthesis on the catalyst properties and structure was investigated. The catalyst structure was examined by X-ray diffraction.
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页码：869 / 873
页数：5
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