Dear,

I'm not sure to understand exactly your question and it depend of the type of compound do you used. But the compound, or just one part, that you used for deactivation it will be find at the end of polymer chains to deactivate .

I hope this answer can help you.

Dear Harmand Lydie,

I am simulating LLDPE copolymerization with Monte Carlo. I want to know when impurity is poisoning the living chain is that adjoin to it or not.

Thank you.

Hello, see this article

Dear,

I'm sorry Ms Arezoo sh. dadkhah but I can't read your link.

You can terminate by elimination reaction or by addition of H.

(see DOI: 10.1002/mats.200390011)

I hope it can help you

Dear all,

I think here two situation must be considered, for whether the impurity react the propagating chains species or with the catalyst itself. In the former case the reaction may be considered as an ordinary chain transfer reaction. For the second situation; if the reaction is destroying or consuming the catalyst, it is obvious that the concentration of the catalyst decreases. Note that Ziegler-Natta Catalysts and mainly the fourth generation metallocenes (single-sites) are extremely sensitive to impurities mainly to water or humidity. Regards