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Which of the following solvents is not useful for controlling the degree of polymerization?

Which of the following solvents is not useful for controlling the degree of polymerization? Correct Answer toluene

The other three solvents exhibit high chain transfer activity; they surpass styrene in reactivity towards chain radical and have CS values greater than unity. Toluene, on the other hand, has a very low CS value to control the degree of polymerization.

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