ionomer

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ionomer

(aɪˈɒnəmə)
n
(Chemistry) chem any of a class of tough thermoplastics with ionic bonding between the polymer chains
References in periodicals archive ?
Company's toughening technologies involve ethylene terpolymers, ionomers, and grafted polyolefins.
Course content will include an introduction to the course and discussion of the place of TPEs relative to vulcanized rubber and thermoplastics; basic polymer science relevant to understanding TPE structures, properties and processing; styrenic block copolymers, SBS, SIS, SEBS and functionalized SEBS; thermoplastic polyurethanes; copolyesters; olefinic rubber/ thermoplastic blends, EPR/PP and EPDM/PP (TPO): TPE blends with a dynamically vulcanized phase, EPDM/ PR NBR/PP and NR/PP (TPV); other TPEs, PVC and other blends, EVA, ionomers and single phase melt processible rubber (MPR), future developments and potential for TPEs; and a summary and course review.
Today, the cements most widely used to cement molar bands are conventional glass ionomers (CGI), which have significant advantages, such as constant fluoride release and uptake, microbial inhibition, chemical adhesion to teeth and to metal, (5-10) low thermal coefficient of expansion (6) and low solubility.
Specifically, disclosed are methods and products resulting therefrom for creating functionalized ionomers and grafting polyamide to halobutyl ionomers via reactive extrusion.
The second volume is devoted to aspects of applications, among them, fluoroalkyl acrylate polymers and their applications, fluoroplastics and fluoroelastomers: basic chemistry and high-performance applications, the commercial synthesis and applications of poly(vinylidene fluoride), fluoridated ionomers and ionomer membranes: monomer and polymer synthesis and applications, and fabricating flexible transparent nanohybrids with heat-resistant properties using a fluorinated crystalline polymer.
Effects of temperature on the fluoride release and recharging ability of glass ionomers.
3) Sealants are also effective when placed over incipient lesions, due to the fluoride release of glass ionomers and some resin materials.
Ionomers are partially crosslinked ionomeric resins, and perform in peelable seal applications through delamination of the seal/seal interface.
Ionomers are polymers that contain a small number of ionic salt groups attached to hydrophobic organic backbone chains.
Composites modified by the addition of polyacids (or compomers) will not be discussed in this article because these are more similar to composites than glass ionomers.