Structure and Properties of Ionomers
Structure and Properties of Ionomers

Author: Michel Pineri

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 579

ISBN-13: 9400938292

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Ionomers, that is polymers containing a low concentration of charged units along the chain, have been the subject of increasing interest during the past twenty years. The presence of ionic groups in the poly mer changes some of its properties dramatically. Increases in the modu lus and the viscosity of several orders of magnitude have been observed, and changes in the glass transition of hundreds of degrees are possible. In addition, diffusion coefficients can be modified drastically. These changes are due primarily to the presence of reversible ionic cross links in these materials. Because of the low dielectric constant of most organic polymers, the ions or ionic dipoles tend to aggregate ; this aggregation process, however, is limited, because the ionic groups are covalently bonded to the organic chain. Host of the fundamental research done on these materials has been devoted to a determination of the extent of association, the structure of the aggregates, the limi ting factors, and the correlations between molecular and supermolecular structure and the resul ting properties.

Ionomers
Ionomers

Author: M.R. Tant

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 524

ISBN-13: 940091461X

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Polymers have achieved an enviable position as the class of materials having the highest volume of production, exceeding that of both metals and ceramics. The meteoric rise in the production and utilization of polymers has been due to advances in polymer synthesis which allow the creation of specific and well-defined molecular structures, to new knowledge concerning the relationships between polymer structure and properties, and to an improved understanding of how processing can be used as a tool to develop morphological features which result in desired properties. Polymers have truly become 'engineered materials' in every sense of the term. Polymer scientists and engineers are forever seeking to modify and improve the properties of synthetic polymeric systems for use in specific applications. Towards this end they have often looked to nature for advice on how to design molecules for specific needs. An excellent illustration of this is the use of noncovalent bonding (ionic, hydrogen, and van der Waals) in lipids, proteins, and nucleic acids, where these noncovalent bonds, acting both intra and intermolecularly, precisely control the structure and thus the function of the entire system. The utilization of ionic bonding, in particular in man-made polymers has attracted widespread interest in recent years, since ionic interactions exert a similar strong influence on the structure and properties of these synthetic systems.

Ionomers
Ionomers

Author: Shulamith Schlick

Publisher: CRC Press

Published: 1996-01-15

Total Pages: 326

ISBN-13: 9780849376481

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The molecular structure and composition of ionomers lead to a complex superposition of properties of organic chains and of polyelectrolytes. The potential use of this class of polymers in applications such as surfactants, ion selective membranes in electrochemical processes, coatings, fuel cells and batteries has sparked a vast amount of research.

Introduction to Ionomers
Introduction to Ionomers

Author: Adi Eisenberg

Publisher: Wiley-Interscience

Published: 1998-05-06

Total Pages: 360

ISBN-13:

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A practical introduction to one of today's most exciting and rapidly growing areas of polymer science. Introduction to Ionomers affords chemists, engineers, and graduate students an opportunity to familiarize themselves quickly and thoroughly with one of today's most commercially important classes of polymers. Featuring a balanced, fully integrated presentation of basic science and state-of-the-art applications, the book provides the depth of knowledge researchers need to make optimal use of established ionomeric processes or to develop new systems of their own. The book's primary conceptual thrust is the relationship between polymeric architecture and polymeric morphology and properties when affected by ionic groups. While it provides in-depth coverage of all common classes of ionomeric materials--including polystyrenes, polyethylenes, polyurethanes, and polyacrylics--non-crystalline materials are emphasized over partly-crystalline materials. Co-author Adi Eisenberg, a leading ionomer pioneer and innovator, provides a uniquely intimate historical perspective on the field as it has developed over the past three decades. Newcomers to ionomers will appreciate the authors' clear and methodical presentations of difficult concepts, designed to promote rapid mastery of the core principles involved. The product of an exhaustive survey of the huge and rapidly growing world literature on the subject, Introduction to Ionomers is also an excellent resource for experienced professionals attempting to stay abreast of important recent developments in the field.

Ion-Containing Polymers
Ion-Containing Polymers

Author: A. Eisenberg

Publisher: Elsevier

Published: 2012-12-02

Total Pages: 304

ISBN-13: 0323156754

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Ion-Containing Polymers: Physical Properties and Structure is Volume 2 of the series Polymer Physics. This book aims to fill in the gap in literature regarding the physical aspects of ion-containing polymers. A total of five chapters comprise this book. The Introduction (Chapter 1) generally deals with the application of ion-containing polymers, general classification, and the available works regarding the subject. Chapter 2 establishes the concepts of supermolecular structure and glass transitions in terms of the effects of ionic forces in polymers. These chapters provide the context in the discussion of viscoelastic properties of homopolymers and copolymers in Chapters 3 and 4. Finally, Chapter 5 tackles the configuration-dependent properties of ion-containing polymers. This volume will be of particular help to students in the field of physics and chemistry.

Structure-property Relationships in Model Ionomers from Molecular Dynamics Simulation
Structure-property Relationships in Model Ionomers from Molecular Dynamics Simulation

Author: Janani Sampath

Publisher:

Published: 2018

Total Pages:

ISBN-13:

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Ionomers are polymers that contain a small fraction of ionic groups covalently bound to a non-polar backbone. These bound ions along with free counterions tend to aggregate strongly in a low dielectric medium, giving rise to material properties different from the parent, uncharged polymer. Our research employs molecular dynamics (MD) simulations to understand the structure and dynamic behavior of these ionic aggregates under different conditions, to aid the development of improved materials such as ionomer composites for 3D printing.

Self-Healing Polymer-Based Systems
Self-Healing Polymer-Based Systems

Author: Sabu Thomas

Publisher: Elsevier

Published: 2020-07-11

Total Pages: 546

ISBN-13: 0128184515

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Self-Healing Polymer-Based Systems presents all aspects of self-healing polymeric materials, offering detailed information on fundamentals, preparation methods, technology, and applications, and drawing on the latest state-of-the-art research. The book begins by introducing self-healing polymeric systems, with a thorough explanation of underlying concepts, challenges, mechanisms, kinetic and thermodynamics, and types of chemistry involved. The second part of the book studies the main categories of self-healing polymeric material, examining elastomer-based, thermoplastic-based, and thermoset-based materials in turn. This is followed by a series of chapters that examine the very latest advances, including nanoparticles, coatings, shape memory, self-healing biomaterials, ionomers, supramolecular polymers, photoinduced and thermally induced self-healing, healing efficiency, life cycle analysis, and characterization. Finally, novel applications are presented and explained. This book serves as an essential resource for academic researchers, scientists, and graduate students in the areas of polymer properties, self-healing materials, polymer science, polymer chemistry, and materials science. In industry, this book contains highly valuable information for R&D professionals, designers, and engineers, who are looking to incorporate self-healing properties in their materials, products, or components. Provides comprehensive coverage of self-healing polymeric materials, covering principles, techniques, and applications Includes the very latest developments in the field, such as the role of nanofillers in healing, life cycle analysis of materials, and shape memory assisted healing Enables the reader to unlock the potential of self-healing polymeric materials for a range of advanced applications