Polyurethane Shape Memory Polymers  book cover
1st Edition

Polyurethane Shape Memory Polymers

ISBN 9781138075009
Published March 30, 2017 by CRC Press
383 Pages 377 B/W Illustrations

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Book Description

Shape memory polymers (SMPs) are some of the most important and valuable engineering materials developed in the last 25 years. These fascinating materials demonstrate remarkably versatile properties—including capacity for actuation and stimulus responsiveness—that are enabling technologists to develop applications used to explore everything from the outer reaches of space to the inside of the human body.

Polyurethane Shape Memory Polymers details the fundamentals of SMP makeup, as well as their shape-recovery features and their seemingly endless potential for use in applications ranging from the macro- to submicron scales. With an abundance of illustrations and vivid pictures to explain how SMPs and their composites work and how they can be used, this book covers:

  • History and most recent developments in SMPs
  • Thermomechanical properties and behavior of the polymers and their composites
  • Modification of SMPs and novel actuation mechanisms
  • Large-scale surface pattern generation
  • Multi-shape memory effect
  • Fabrication techniques
  • Characterization of composites

A must-have reference for anyone working in the materials science and engineering fields, this book outlines the properties—such as light weight, low cost, and ability to handle high strain—that make the easily processed SMPs so useful in fields including aerospace, biomedicine, and textiles. It is intended to help readers understand and apply the knowledge and techniques presented to develop new innovations that will further benefit society.

Table of Contents


Shape Memory Materials and Shape Memory Polymers

Mechanisms of Shape Memory Effects in Shape Memory Polymers

Typical Applications of Shape Memory Polymers

Polyurethane Shape Memory Polymers

Outline of Book

Thermomechanical Behavior of Polyurethane Shape Memory Polymer

Glass Transition Temperature and Thermal Stability

Dynamic Mechanical Properties

Uniaxial Tension in Glass State

Uniaxial Tension in Rubber State

Recovery Tests

Effects of Moisture on Glass Transition Temperature and Applications

Moisture Absorption in Room-Temperature Water

Glass Transition Temperature after Immersion

Evolution of Glass Transition Temperature upon Thermal Cycling

Interaction of Water and Polyurethane SMP

Correlation of Moisture, Glass Transition Temperature, and Hydrogen Bonding

New Features Based on Effects of Moisture

Recovery Tests

Electrically Conductive Polyurethane Shape Memory Polymers

Preparation of Electrically Conductive Polyurethane SMP

Shape Recovery by Passing Electrical Current

Distribution of Carbon Powder in Polyurethane SMP

Electrical Resistivity

Thermal Stability

Uniaxial Tensile Testing at Room Temperature

Shape Memory Properties upon Heating

Effects of Moisture on Electrically Conductive Polyurethane Shape Memory Polymers

Absorption of Moisture in Room-Temperature Water

Electrical Resistivity after Immersion

Glass Transition Temperature after Immersion

Evolution of Glass Transition Temperature upon Thermal Cycling

Correlation of Moisture Absorption, Loading of Carbon Powder, and Glass Transition Temperature

Effects of Moisture on Thermomechanical Properties

Magnetic and Conductive Polyurethane Shape Memory Polymers

Iron Oxide Micro Particles

Nickel Micro and Nano Powders

Electrically Conductive SMPs

Shape Memory Polymer Nanocomposites

Synthesis Techniques of SMP Nanocomposites

Shape Memory Polymer Nanocomposites

Porous Polyurethane Shape Memory Polymers

Water as Foaming Agent for Porous SMPs

Formation of Bubbles by Heat Treatment

Thermomechanical Behaviors of SMP Foams

Yield Surface of Foam

Influence of Storage on Polyurethane SMP Foams

Shape Memory Effects at Micro and Nanoscales

SMP Thin Wires

SMP Micro Beads

SMP Thin and Ultrathin Films

Surface Patterning atop Shape Memory Polymers

Wrinkling atop Shape Memory Polymers

Theory of Wrinkling

Wrinkling atop SMPs

Medical Applications of Polyurethane Shape Memory Polymers

Thermo-Responsive Feature-Based Devices

Thermo- and Moisture-Responsive Feature-Based Devices

Toward Micro Machines

Mechanisms of Multi-Shape and Temperature Memory Effects

Multi-Shape Memory Effect and Temperature Memory Effect

Demonstration of Multi-SME and TME in Polyurethane SMP


Future of Polyurethane Shape Memory Polymers

Characterization and Modeling of SMPs

Stability of SME

Cyclic Actuation

Alternative Actuation Techniques

Multiple Functions

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W.M. Huang is an Associate Professor of Mechanical and Aerospace Engineering at Nanyang Technological University, Singapore.


"One in all, the authors managed to write a book which gives a comprehensive overview on polyurethane shape memory polymer research. Due to the authors’ long-term research experience, I am optimistic that Polyurethane Shape Memory Polymers will be a success story. Everyone, who wants to learn about these fascinating materials or get inspired, will find plenty of information and a valuable source of inspiration."
-- Dr. Thorsten Pretsch, BAM Federal Institute for Materials Research and Testing, Berlin, Germany