What is the role of benzoyl peroxide in addition polymerisation of alkenes? Explain its mode of action with the help of an example.
What is the role of benzoyl peroxide in addition polymerisation of alkenes? Explain its mode of action with the help of an example.
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1 Answer
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This is a short answer type question as classified in NCERT Exemplar
Free radicals are generated from benzoyl peroxide. Alkanes, dienes are polymerized in the presence of free radical inhibitors like benzoyl peroxide, acetyl peroxide. For example, benzoyl peroxide inhibitor is used for the polymerization of ethene to polythene. First, phenyl peroxide radicals are formed which are added to the double bond of ethene generating a new and larger free radical.
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CH2 = CHCN (acrylonitrile) is a monomer of orlon
Monomer of neoprene polymer is
3-Chloro-1, 3-butadiene
Complete reaction is as follows:
The given reaction is called hydroboration oxidation.
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