Discuss specific criteria which can be used to classify a given process as a living or...

Discuss specific criteria which can be used to classify a given process as a living or controlled process in living polymerization

Expert Solution

Answer. The Specific criteria whice can be used to classify a given process as a living or controlled process in living polymerization is Chain growth polymerisation.

Addition polymerisation has the feaure of a chain reaction. The reactiove centre formed by the reaction of with a free radical , a cation ,& an anion. Polymerisation occures through the propagation of the active species by successive addition of a large no. of monomer molecules

The different steps are;-

a) Initiation; A free radical is highly reactive and can attack any molecule which either has a lone pair of electrom or is prepared to part with with one of its electron.The free radical attacks the double bond in the monomer molecule and produced a free radical with increase the number of carbon chain.

b) propagation; After initiation step, the radical site at the first monomer unit attacks the doublr bond of a fresh monomer molecule and free radical transfer from the first monomer unit to the 2nd by unpaired of electron.

c) termination: After propagation step, termination step comes.The growth polymer chain cease when the reaction centre is destroyed by one possible termination reaction.

queen_honey_blossom answered 2 years ago

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