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Organic Chemistry | 7th Edition | ISBN: 9781269406772 | Authors: Paula Yurkanis Bruice
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A chemist carried out two polymerization reactions. One

Chapter 27, Problem 32P

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Problem 32P

A chemist carried out two polymerization reactions. One flask contained a monomer that polymerizes by a chain-growth mechanism, and the other flask contained a monomer that polymerizes by a step-growth mechanism. When the reactions were terminated early in the process and the contents of the fl asks analyzed, it was found that one flask contained a high-molecular-weight polymer and very little material of intermediate molecular weight. The other contained mainly material of intermediate molecular weight and very little high-molecular-weight material. Which flask contained which product? Explain.

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QUESTION:

Problem 32P

A chemist carried out two polymerization reactions. One flask contained a monomer that polymerizes by a chain-growth mechanism, and the other flask contained a monomer that polymerizes by a step-growth mechanism. When the reactions were terminated early in the process and the contents of the fl asks analyzed, it was found that one flask contained a high-molecular-weight polymer and very little material of intermediate molecular weight. The other contained mainly material of intermediate molecular weight and very little high-molecular-weight material. Which flask contained which product? Explain.

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Solution  32P

This exercise tells of a chemist that carried out two polymerization reactions. One reaction contained a monomer that polymerized by a chain-growth mechanism, and the other reaction contained a monomer that polymerizes by a step-growth mechanism.

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