Síntese de catalisadores Ziegler-Natta: algumas rotas e suas dificuldades

Química Nova

Thaís H. S. Costa²  Marcos A. S. Costa²  Luiz Claudio De Santa Maria²  Fernanda M. B. Coutinho²  Neusa M. T. Pires¹ 

[1] ,Universidade Federal do Rio de Janeiro Instituto de Macromoléculas Professora Eloisa Mano Rio de Janeiro RJ

关键词: Ziegler-Natta catalysts;    propylene;    butadiene;    polymerization;   

DOI  :  10.1590/S0100-40421997000100012

来源: SciELO

【 摘 要 】

The Ziegler-Natta catalyst and the polymerization thereof are systems which require careful handling and special treatment of chemicals. In spite of the use of inert atmosphere and dry chemicals, some Ziegler-Natta systems may present low activities or even may deactivate because of unsuitable handling. Some features of the TiCl3 synthesis and its characterization when related to the presence of impurities are described. Evidences of poor handling of chemicals and/or laboratory devices while in synthesis of the catalyst are emphasized. The problems arising from butadiene polymerization and some relevant details in propylene polymerization are also presented with teaching objectives.

【 授权许可】

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