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Explain the following for the chain - growth polymerization: a ) It is found that polymerization progresses even without an initiator when the vinyl monomers

Explain the following for the chain-growth polymerization:
a) It is found that polymerization progresses even without an initiator when the vinyl monomers are
exposed to high temperatures.
i) How does the initiation occur in this case? Please explain briefly.
ii) Model the rate of polymerization (rp). Find the average molecular weight of the polymer.
b) Assume that the temperature of polymerization is increased from 50\deg C to 100\deg C for pure styrene, and
the polymerization is carried out to completion.
i) Do you expect the equilibrium monomer concentration to reduce or increase?
ii) Calculate the equilibrium monomer concentration as a function of temperature.

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