化学学报 ›› 1983, Vol. 41 ›› Issue (9): 783-790. 上一篇    下一篇

研究论文

Ziegler-Natta 型催化剂NdCl3·3I-PtOH-AlEt3 两组分间的反应及其反应产物对双稀烃聚合的催化活性

阮埃乃;李柏林   

  1. 中国科学院长春应用化学研究所
  • 发布日期:1983-09-15

Reactions between two components of a ziegler-natta type catalyst, NdCl3.3i-PrOH and AlEt3, and catalytic activity of the reaction product in the diene polymerization

RUAN AINAI;LI BAILIN   

  • Published:1983-09-15

关键词: 氯化物, 活性, 钕化合物, 铝化合物, 镨络合物, 三乙基, 异丙醇, 齐格勒纳塔催化剂

The reactions between the two components of the rare-earth coordination catalyst, NdCl3.3i-PrOH and AlEt3, were studied. It was found that the activated solid product was a mixture containing alkylated neodymium compounds, but no alkyl chloride was formed during the reaction. The alkyls bounded to neodymium or to the bridge between neodymium and aluminium atoms are thermally less stable than those bonded to the aluminium atom. Two possible structures of alkylated neodymium compounds were postulated. The catalytic activity in the isoprene polymerization increases with the increase of degree of alkylation and decreases in the presence of alkyl aluminium chloride.

Key words: CHLORIDE, ACTIVITY, NEODYMIUM COMPOUNDS, ALUMINIUM COMPOUNDS, PRASEODYMIUM COMPLEX, TRIETHYL GROUP, ISOPROPANOL, ZIEGLER-NATTA CATALYST

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