Materials Science and Engineering: An Introduction

Published by Wiley
ISBN 10: 1118324579
ISBN 13: 978-1-11832-457-8

Chapter 14 - Polymer Structures - Questions and Problems - Page 577: 14.4b


$M_{n} = 6.31 \times 10^{5} g/mol$

Work Step by Step

Given: For polypropylene, $m= 42.08 g/mol$. Required: The number-average molecular weight for a polypropylene for which the degree of polymerization is 15,000. Solution: Using Equation 14.6: $M_{n} = (DP)(m) = (15,000)(42.08 g/mol) = 6.31 \times 10^{5} g/mol$
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