Polystyrene is a synthetic polymer with the structure -(CH2- CH(C6H5))n-. A batch of
Chapter 19, Problem 19.33(choose chapter or problem)
Polystyrene is a synthetic polymer with the structure -(CH2- CH(C6H5))n-. A batch of polydisperse polystyrene was prepared by initiating the polymerization with t-butyl radicals. As a result, the t-butyl group is expected to be covalently attached to the end of the final products. A sample from this batch was embedded in an organic matrix containing silver trifluoroacetate and the resulting MALDI-TOF spectrum consisted of a large number of peaks separated by 104 g mol1, with the most intense peak at 25 578 g mol1. Comment on the purity of this sample and determine the number of (CH2-CH(C6H5)) units in the species that gives rise to the most intense peak in the spectrum .
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