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Sunday, April 26, 2020 | History

5 edition of Structure and Properties of Ionomers (NATO Science Series C:) found in the catalog.

Structure and Properties of Ionomers (NATO Science Series C:)

  • 88 Want to read
  • 35 Currently reading

Published by Springer .
Written in English

    Subjects:
  • Polymer Chemistry,
  • Science,
  • Science/Mathematics,
  • Chemistry - Organic,
  • Material Science,
  • Science / Chemistry / Organic,
  • Technology-Material Science,
  • Congresses,
  • Ionomers

  • Edition Notes

    ContributionsMichel Pineri (Editor), Adi Eisenberg (Editor)
    The Physical Object
    FormatHardcover
    Number of Pages604
    ID Numbers
    Open LibraryOL9096665M
    ISBN 10902772458X
    ISBN 109789027724588

    We also utilize nano X-ray computed tomography to visualize electrode structure and to quantify particle-size and pore-size distributions, thickness-dependent ionomer distribution, tortuosity, and effective transport properties. We find that solvent has a strong influence on ionomer distribution, with less of an effect on porosity. "The impact of zinc neutralization on the structure and dynamics of precise polyethylene acrylic acid ionomers: A solid-state C NMR study," POLYMER, v, , p. Dan S. Bolintineanu,* Mark J. Stevens, and Amalie L. Frischknecht*. "Influence of Cation Type on Ionic Aggregates in Precise Ionomers," Macromolecules, v, , p.


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Structure and Properties of Ionomers (NATO Science Series C:) Download PDF EPUB FB2

Introduction. 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.

Structure and Properties of Ionomers. Structure and Properties of Ionomers book dispatched within 3 to 5 business days. Usually dispatched within 3 to 5 business days. Ionomers, that is polymers containing a low concentration of Structure and Properties of Ionomers book 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. : Structure and Properties of Ionomers (Nato Science Series C:) (): Pineri, Michel, Eisenberg, Adi: Books.

The meteoric rise in the production and utilization of Structure and Properties of Ionomers book 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 Structure and Properties of Ionomers book of how processing can be used as a tool to develop morphological features which result in desired : Paperback.

Round table discussion on glass transition and dynamic mechanical properties of ionomers.- Water absorption studies of carboxilic and sulfonic ionomers: correlations with their microstructure.- Effect of solvents on structure and properties Structure and Properties of Ionomers book ionomers.- Relationships between polymer structure and ion diffusion in perfluorinated ionomer membranes Ionomers: Synthesis, Structure, Properties and Applications by M.

Tant and K. Mauritz and G. Wilkes Overview - Polymers have achieved an enviable position as the class of materials having the highest volume of production, exceeding that of both metals and ceramics.

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 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.

Structure and Properties of Crystallizable Ionomers We have conducted a systematic investigation of the structure-property-processing relationships in ethylene-methacrylic acid copolymers and ionomers. The applications of ion-containing polymers or ionomers are many and varied.

One of the well-established is the use of perfluorinated ionomers as members in chlor-alkali cells. This book is aimed at polymer scientists and chemical engineers. By Robert B. Moore, Published on 04/22/ Recommended Citation.

Moore, R. Ionomers: Synthesis, Structure, Properties, and : Robert B. Moore. 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.

Ionomers are polymers in which ionized carboxyl groups create ionic cross-links in the intermolecular structure. 19 The properties are similar to those of cross-linked thermosets, even though these resins are processed at conventional temperatures like other thermoplastic resins, for example Surlyn ® resins by the Du Pont Company ().

Ionomers, according to Eisenberg and Rinaudo, are “polymers in which the bulk properties are governed by ionic interactions in discrete regions of the material” [80]. Due to containing ionic, dipole–dipole or ion–dipole “bonds,” they also are promising.

Solution properties. Melt rheology. Structure and properties of hydrocarbon-based ionomers. Structure and properties of perfluorinated ionomers.

Part Three: Applications. Membrane applications. Packaging. Blend compatibilization. Urethane-based dispersions. Elastomers and fluid additives. Adhesives.

Catalysis. Future directions. (source. Find many great new & used options and get the best deals for Ionomers: Synthesis, Structure, Properties and Applications (, Hardcover) at the best. Data on the synthesis, structure and physicochemical properties of liquid-crystalline ionomers, a new class of mesomorphous polymeric compounds, are summarised.

Structural Properties of Ionomers. Annual Review of Materials Science Vol. (Volume publication date August ) Annual Review of Chemical and Biomolecular Engineering Polymer Electrolytes the internal lattice structure of the NC building blocks is reso Figure (A) SAXS patterns for epitaxial superlattices prepared from Cited by: This is the first book in 20 years that surveys the field of ionomers for the nonspecialist.

The book relates the molecular structure of ionomers with their physical properties and interactions, including such concepts as the glass transition, mechanical properties of random-styrene based and other ionomers. The system performance and stability are related to the transport and mechanical properties of the ionomers, which are correlated through physiochemical interactions and morphology.

Thus, there exists a balance between the chemical and mechanical energies which controls the structure–function relationship of the by: As noted above, EW, along with side-chain chemistry, is a critical parameter influencing ionomer behavior and its transport-stability relationship, yet the question remains how they affect an ionomer’s other transport properties, dynamic behavior, mechanical properties, and its surface and structure in confined geometries, such as a thin by: Ionomers have unique physical properties including electrical conductivity and viscosity—increase in ionomer solution viscosity with increasing temperatures (see conducting polymer).

Ionomers also have unique morphological properties as the non-polar polymer backbone is energetically incompatible with the polar ionic groups. Glass Ionomer Cements a self-cured, tooth-colored, fluoride-releasing restorative material that bonds to tooth structure without an additional bonding agent Hybrid (Resin-Modified) Glass Ionomer a glass ionomer to which resin has been added to improve its physical properties.

GIC properties like cure time, adhesion and cement strength depend on the ionomer composition, structure, viscosity, molecular weight and polymer dispersity. The purity of the ionomer, especially the trace monomer and oligomer contents, is also very important in determining the final properties.

IONOMERS are plastics in which a copolymer of ethylene with an acid, such as methacrylic acid, is combined with a metal (unpublished results of R. Rees and D. Cited by:   1. Introduction. Glass-ionomer cements belong to the class of materials known as acid-base cements.

They are based on the product of reaction of weak polymeric acids with powdered glasses of basic character [].Setting occurs in concentrated solutions in water and the final structure contains a substantial amount of unreacted glass which acts as filler to reinforce the set by: Search the world's most comprehensive index of full-text books.

My library. Nafion is a brand name for a sulfonated tetrafluoroethylene based fluoropolymer-copolymer discovered in the late s by Walther Grot of DuPont. Nafion is a brand of the Chemours company. It is the first of a class of synthetic polymers with ionic properties that are called 's unique ionic properties are a result of incorporating perfluorovinyl ether groups terminated with CAS Number: Stanford Libraries' official online search tool for books, media, journals, databases, government documents and more.

Ionomers: characterization, theory, and applications in SearchWorks catalog Skip to search Skip to main content. Ionomers contain a small amount of ionic comonomer, such as carboxylic acid groups neutralized with a metal cation.

Aggregation of these metal salt groups induces a heterogeneity with a length scale of a few nanometers, as shown schematically below. In this study, we examined the influence of the dispersion solvent in three dipropylene-glycol/water (DPG/water) mixtures, with DPG contents of 0, 50, and wt%, on ionomer Cited by: physical structure of ionomer is distinguished by interchain ionic bonding {8].

Due to the dissociation of the interchain ionic bonding at high temperatures, ionomers can be processed using standard thermoplastic processing methods. The bulk properties of the ionomers are governed by ionic interactions in the discrete.

Ionomers are polymers containing a low mole fraction of ionic groups bound to the polymer backbone. These ionic groups produce major changes in their structure and mechanical properties. Recently, we introduced a new family of crosslinked poly(Bd)/poly(Bd-co-MAA) core shell nanoparticles (1,3-butadiene and methacrylic acid) that could be ionically crosslinked and cast as nanostructured ionomer Cited by: 7.

Elastomers, such as a rubber band, are polymers with elastic properties that enable them to be significantly deformed with minimal force. When the stress is. A versatile material with chemical properties allowing it to be used as a restorative material, liner, bonding agent, and permanent cement.

Qualities of glass ionomer. Resin-modified glass ionomers (RMGI) were developed in an attempt to improve mechanical properties, decrease setting time, and attenuate moisture sensitivity. Simplistically, RMGIs are a hybrid of glass ionomers and composite resin, and thus contain acid-base and polymerizable by: The resin-modified glass ionomer materials are hybrid materials of traditional glass ionomer cement with a small addition of light-curing resin, and hence exhibit properties intermediate to the.

Glass ionomer cements (GICs) are polyalkenoates cements. In order to increase the mechanical properties of GIC, it is proposed to incorporate resin components (generally monomers of hydroxyethyl methacrylate (HEMA)).

This new family of GIC was named resin‐modified glass ionomers Author: Elisabeth Dursun, Stéphane Le Goff, Jean‐Pierre Attal.

Although conventional ionomers have been studied for more than 40 years, reports of ionomers prepared using aqueous core–shell nanoparticle dispersions are lacking. In this study we examine the structure and properties of new soft core–shell elastomeric nanoparticles and ionomer films.

The nanoparticles consist of a soft poly(Bd) (Bd is 1,3-butadiene) core and a poly(Bd-co-MAA) shell (MAA. This article is an updated review of the published literature on glass-ionomer cements and covers their structure, properties and clinical uses within dentistry, with an emphasis on findings from the last five years or so.

Glass-ionomers are shown to set by an acid-base reaction within 2–3 min and to form hard, reasonably strong materials with acceptable by:. “. Pdf on styrene ionomers were started in the mid s “. In the s and early s, a number ot investigators explored the structure and properties of these ionomers.

Another important event was the appearance of a patent on ionic polyurethanes“. 3.An ionomer is a polymer that comprises repeat units download pdf both electrically neutral repeating units and a fraction of ionized units (usually no more than 15 percent). Ionomers have unique physical properties including electrical conductivity and isoviscosity-- increase in ionomer solution viscosity with increasing temperatures (see conducting polymer).

Some commercial applications for ionomers. The ionic groups aggregate in the bulk and ebook physical crosslinks which cause profound improvement ebook the physical properties of the ionomers (refs. ). Ionomers in general show unusually high melt viscosities due to strong intermolecular associations and the relatively high stability of the ionic clusters, thus making their melt processing.