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Which of the following act as a catalyst in anionic polymerisation?

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in Engineering Chemistry I by (506k points)
Which of the following act as a catalyst in anionic polymerisation?

(a) Grignard reagent

(b) Lewis acids

(c) Benzoyl peroxide

(d) AIBN

The question was asked during an interview for a job.

This key question is from Polymerization in portion Polymers of Engineering Chemistry I

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Right answer is (a) Grignard reagent

To explain I would say: Grignard reagent act as a catalyst in anionic polymerisation. The Grignard reaction is an organo-metallic chemical reaction in which alkyl, vinyl, or aryl-magnesium halides, CH3MgI (Grignard reagents) add to a carbonyl group in an aldehyde or ketone.

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