Montgomery T. Shaw - Introduction to Polymer Viscoelasticity

1. Chapter 2
2. Chapter 3
3. Chapter 4
4. Chapter 5
5. Chapter 6
6. Chapter 7

1. Chapter 1
2. Chapter 2
3. Chapter 3
4. Chapter 4
5. Chapter 5
6. Chapter 6
7. Chapter 7

Fourth Edition

Montgomery T. Shaw
William J. MacKnight

This fourth edition first published 2018

2018 JohnWiley & Sons, Inc

Edition History

Third Edition: 2005, Copyright John Wiley & Sons, inc.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, except as permitted by law. Advice on how to obtain permission to reuse material from this title is available at http://www.wiley.com/go/permissions.

The right of Montgomery T. Shaw and William J. MacKnight to be identified as the authors of this work has been asserted in accordance with law.

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Library of Congress CataloginginPublication Data

Names: Shaw, Montgomery T., author.

Title: Introduction to polymer viscoelasticity / Montgomery T. Shaw, William

J. MacKnight.

Description: Fourth edition. | Hoboken, NJ, USA : Wiley, 2018. | Original

1972 edition by John J. Aklonis, William J. MacKnight, and Mitchel Shen |

Includes bibliographical references and indexes. |

Identifiers: LCCN 2017058166 (print) | LCCN 2017059024 (ebook) | ISBN

9781119181811 (pdf) | ISBN 9781119181828 (epub) | ISBN 9781119181804

(cloth)

Subjects: LCSH: Polymers. | Viscoelasticity.

Classification: LCC TA455.P58 (ebook) | LCC TA455.P58 A35 2018 (print) | DDC

620.1/9204232dc23

LC record available at https://lccn.loc.gov/2017058166

Cover Design: Wiley

Cover Image: stellalevi/Gettyimages

To A. V. Tobolsky, who first introduced us to the mysteries of polymer viscoelasticity and to the art of scientific research

For the last dozen years, the 3rd Edition of Introduction to Polymer Viscoelasticity has served well. During this time, the authors have received many constructive suggestions from students and instructors, including conflicting ones such as simplify; it's a bit too complicated paired with expand the theoretical parts. In response to these and other comments, rather modest goals were set for the 4th Edition, namely

• Correct all known errors reported by many kind readers. Errors fall into two categories: (1) the usual grammatical slips and (2) serious mistakes such as equations with missing parts and poorly posed problems. Indeed, one problem was found that we could not solve, and obviously didn't belong in an introductory text. It has been removed.
• Provide more unanswered problems. Since the birth of this text in the early 1970s, answers have been provided for many of the chapterend problems. The reason for this is these problems typically review fundamental concepts, serving as additional solved examples. Some introduce new concepts. However, most instructors want unsolved problems that can be assigned as homework, adapted for active learning exercises and short projects, or used for tests or quizzes.
• Introduce the fields of microrheology and largeamplitude oscillatory strain (LAOS). The former attempts to examine dynamics around very tiny particles, including molecules, to gain information about the local environment, while the latter pushes the material hard enough to cause structural changes. LAOS is particularly important for complex materials where the concepts of structural strength and healing are of significant practical importance. Professors Eric Furst and Randy Ewoldt provided valuable advice on these sections, respectively.
• Open the very large topic of biopolymer viscoelasticity. There is no end to the examples that could be chosen, so we settled on some very different polymers: wood at the highmodulus extreme and hydrogels for the lowmodulus extreme. Guidance for this section from Professor Kelly Burke is gratefully acknowledged.
• Provide an Instructor's Guide with detailed answers to problems presented in the text. The answers are much more than a key for grading homework, in that they provide guidance for what to say to the students who are having trouble approaching a problem solution. Nearly 80 new problems were added, including a selection of problems that do not appear in the text.

Items we have resisted including in this introductory text are tensorial representation of stress and strain, viscoelastic properties and analysis of composite materials (with wood being an exception), selfstructured materials such as liquid crystals and block copolymers with longrange order, and the more baffling characterization methods and analyses such as transform, multiwave, and sonic methods. As the general level of student training and understanding increases, such topics may become more appropriate for an introductory text.