| 摘要 |
Polymn. catalysts for ethylene were prepd. by reaction of magnesium trichloroacetate with AlCl3 and Ti or V salts, e.g., TiCl4. Thus, a mix, of 7.1g I and 5.1g AlCl3 was heated for 21hr at 100≦̸C and ground for 23hr to give a fine powder. This powder (2g) was heated with 2ml TiCl4 in xylene for 17hr at 100≦̸C to give a solid catalyst.
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