Coordination Copolymerization of Polar Monomers with Olefins: Investigation of Problems and Solutions

Document Type : compile

Authors

1 Academic staff of engineering faculty of Iran Polymer and Petrochemical Institute

2 Department of Polymerization Engineering, Iran Polymer and Petrochemical Institute (IPPI), Tehran, Iran

Abstract

In some cases, the interaction between the polar group and the metal center leads to irreversible poisoning of the catalyst. In other cases, although the presence of a polar comonomer reduces the activity of the catalyst, it does not stop the polymerization and the process continues at a low speed. Also, one of the most critical issues in coordination copolymerization is the low percentage of comonomer insertion in the chain. Polar monomers may be less inclined to participate in the reaction than non-polar monomers. During the polymerization process, a series of side reactions may occur that lead to the production of neutral products and reduce the activity of the catalyst. Meanwhile, polar comonomer can cause irreversible deactivation of the catalyst by performing side reactions. Another problem that must be taken care of during the copolymerization of non-polar olefins with polar monomers is to perform polymerization in a way other than the coordination method, which will lead to the production of different products. In this article, in order to overcome the problems in coordination copolymerization, several important strategies have been reviewed.

Keywords

Main Subjects


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