Structure and Properties of Ionomers

✍ Scribed by W. J. MacKnight (auth.), Michel Pineri, Adi Eisenberg (eds.)

• Publisher: Springer Netherlands
• Year: 1987
• Tongue: English
• Leaves: 578
• Series: NATO ASI Series 198
• Edition: 1
• Category: Library

✦ Synopsis

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.

✦ Table of Contents

Front Matter....Pages i-xvi
Available Ionomers....Pages 1-9
A Review and Critical Analysis of Theories of Polar/Nonpolar Aggregation in Ionomers....Pages 11-26
Simple Considerations on the Morphology of Ionomers....Pages 27-37
Statistical Mechanics of Ion-Pair Association in Ionomers....Pages 39-50
The Exafs Spectroscopy Applied to the Ionic Aggregates of Halato-Telechelic Polymers....Pages 51-72
Exafs Analysis of Ion Containing Polymers....Pages 73-86
Chemistry in Ionomers....Pages 87-96
Chromium (III) and Cobalt (II) Aquo Complexes in PFSA (Nafion) Ionomer Films....Pages 97-105
EPR of Mn 2+ , Fe 3+ and Cu 2+ in Ionomers....Pages 107-116
Magnetization and Susceptibility of Ion-Containing Polymers....Pages 117-126
Electronic Spectra and Photophysical Properties of Ions as Probes for the Properties and Structure of Perfluorinated Ionomer Membranes....Pages 127-140
Structural Studies of Ionomers by Infrared Spectroscopy....Pages 141-148
An NMR Study of α, ω-Dicarboxylatopolybutadiene....Pages 149-161
Structure of Ionomers : Use and Abuse of Saxs....Pages 163-170
Small Angle Neutron Scattering Studies of Ionomers in the Bulk State....Pages 171-180
Labelling and Misinterpretation....Pages 181-188
Roundtable Discussion Concerning the Relations between the Results Obtained from Local and Macroscopic Studies....Pages 189-190
Viscoelastic Behavior of Ionomers in Bulk and Solution....Pages 191-226
Dielectric and Related Molecular Processes in Ion Containing Polymers....Pages 227-245
Spin-Glasses Versus Glassy Glasses....Pages 247-254
Glass Transitions in Multicomponent Systems....Pages 255-268
A Review of the Glass Transition in Surlyns and Polypentenamer Ionomers....Pages 269-277
Ionic Elastomers....Pages 279-290
‘Glass Transitions‘ in Ionomer Membranes....Pages 291-305
Glass Transition Temperatures in Styrene Ionomers and their Blends....Pages 307-319
Glass Transition Behavior of Carboxylato-Telechelic Polymers as Models of the Related Ionomers....Pages 321-330
Round Table Discussion on Glass Transition and Dynamic Mechanical Properties of Ionomers....Pages 331-340
Water Absorption Studies of Carboxilic and Sulfonic Ionomers : Correlations with their Microstructure....Pages 341-359
Effect of Solvents on Structure and Properties of Ionomers....Pages 361-376
Relationships between Polymer Structure and Ion Diffusion in Perfluorinated Ionomer Membranes....Pages 377-386
Review: Ionomer Solution Behavior....Pages 387-397
Gelation and Phase Separation of Solutions of Halato Telechelic Polymers....Pages 399-414
Gelation Theory for Ionomer Solutions....Pages 415-426
General Discussion Following the Session on Solutions and Gels....Pages 427-428
Ionomer Applications Including Ionic Elastomers and Polymer/Fluid Additives....Pages 429-438
Ionomers for Adhesives, Antistatics, Magnetic Recording, and Imaging Systems....Pages 439-451
Committee Report on Solved and Unsolved Problems in Ionomer Research....Pages 453-456
Committee Report on the Future Applications of Ionomers....Pages 457-459
Committee Report on Problems of Synthesis of Ion-Containing Polymers....Pages 461-464
Committee Report on Ionomer Characterization....Pages 465-467
The Microphase Separation in Polyurethane Ionomers....Pages 469-479
Structure and Molecular Motion in Complex Salts of Ethylene — Methacrylic Acid Copolymer With 1,3-Bis-Aminomethylcyclohexane and/or Zinc(II)....Pages 481-492
Conductivity and Thermally Stimulated Processes in Ionomers Based on SIS Block Copolymers....Pages 493-499
A Study of Water in Perfluorosulphonate Membranes Using Near Infrared Spectroscopy....Pages 501-510
The Sodium Salts of Sulfonated Polyaryletheretherketone (PEEK) : Preparation and Characterization....Pages 511-516
Effects of Inter-or Intra-Molecular Interactions on Dynamics of Ionomers in Dilutes Solutions....Pages 517-520
Solution Properties of Polystyrene-Based Ionomers in Polar and Low-Polarity Solvents....Pages 521-528
Polystyrene Zwitter Ionomers....Pages 529-533
Sulfonatopropylbetain Random Copolymers: Zwitterionic Analogues of Ionomers....Pages 535-540
Ion Density as a Structure-Determining Factor in Ionenes....Pages 541-545
Dilute Solution Properties of Ionomers Obtained from Eudragit-S....Pages 547-553
Dynamic Mechanical Properties of Concentrated Solutions of a Polystyrene Ionomer in a Styrene Oligomer....Pages 555-560
Ionomers from Sulfonated Polynorbornene....Pages 561-564
Back Matter....Pages 565-581

✦ Subjects

Organic Chemistry; Characterization and Evaluation of Materials