نوع مقاله : تالیفی
نویسندگان
1 عضو هیات علمی پژوهشکده مهندسی پژوهشگاه پلیمر وپتروشیمی ایران
2 مهندسی پلیمریزاسیون /پژوهشگاه پلیمر و پتروشیمی ایران
3 عضو هیات علمی پژوهشگاه پلیمر و پتروشیمی ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
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.
کلیدواژه‌ها [English]
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