Synthesis, Physicochemical Characterization, and Applications of Polyurethane Ionomers: A Review

Ramesh, S.; Kannan, Tharanikkarasu; Mahesh, G. N.; Radhakrishnan, Ganga

doi:10.1080/15583729808546030

Cited by 35 publications

(30 citation statements)

References 194 publications

(195 reference statements)

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“…In addition, the partial introduction of ionic groups into polymer materials makes it possible to improve the dynamic and optical characteristics as well as the adhesion properties of the host polymer while other characteristics are retained. [1][2][3][4] Research has been carried out on polyurethane-based ionomers belonging to substances known as thermoplastic elastomers for the purpose of preventing the diffusion of environmental pollutants from coated films and achieving solubilization and/or dispersion in water. [5][6][7][8][9][10][11][12] We report herein the syntheses of carboxylate-based polyurethane anionomers (PUACs) and sulfonate-based polyurethane anionomers (PUASs), as well as the results of a study of their mechanical characteristics, thermal properties, wetting characteristics, and hygroscopicity.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of polyurethane anionomers

Matsunaga¹,

Nakagawa²,

Sawai³

et al. 2005

J of Applied Polymer Sci

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Un-ionized polyurethane was obtained by the reaction of an isocyanate-terminated urethane prepolymer, which was synthesized from 4,4Ј-diphenylmethane diisocyanate and poly(oxytetramethylene)-␣,-glycol, with 2,2-bis(hydroxymethyl)propionic acid. A carboxylate-based polyurethane anionomer was then derived from the polyurethane by the use of the sodium, potassium, or magnesium salt of acetic acid as a neutralizer. The ionomerization resulted in the following changes in the characteristics of the polyurethane: (1) an increase in the tensile strength, (2) a decrease in the glass-transition temperature, (3) an increase in the wettability and hygroscopicity with respect to water, and (4) susceptibility to thermal decomposition. A sulfonatebased polyurethane was also synthesized for comparison with the carboxylate-based polyurethane.

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Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of polyurethane anionomers

Matsunaga¹,

Nakagawa²,

Sawai³

et al. 2005

J of Applied Polymer Sci

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“…Those with a higher mole percentage of ionic groups are classified as polyelectrolytes (11). The combination of low ionic content and a low polarity backbone results in a class of PU of scientific, technological, and commercial interest.…”

Section: Polyurethane Ionomersmentioning

confidence: 99%

“…New families of ionic polymers have emerged that possess a wide variety of properties for different applications. The most commercially exploited ionomers in recent times are perfluorosulfonated ionomers (Nafion), poly (ethylene-co-methacrylic acid) ionomers (Surlyn), and sulfonated ethylene polypropylene terpolymer and perfluorocarboxylate ionomers (Flemion) (11).…”

Section: Polyurethane Ionomersmentioning

confidence: 99%

“…PU-ionomer coatings are applied to leather to give good gloss, flexibility, and low-temperature characteristics, as well as scratch resistance. PU-ionomers can be used as compatibilizers for polymers, as plasticizers for certain materials to enhance their processibility, and as surfactants in special applications (10)(11)(12).…”

Section: Polyurethane Ionomersmentioning

confidence: 99%

“…Ionomers are a specific class of ion-containing polymers that typically possess less than 15 mole% ionic groups covalently attached to a hydrocarbon backbone (10)(11)(12). Those with a higher mole percentage of ionic groups are classified as polyelectrolytes (11).…”

Section: Polyurethane Ionomersmentioning

confidence: 99%

See 2 more Smart Citations

Applications of Isocyanation for Polymer Systems

Pan

Lau²

2001

Journal of Macromolecular Science, Part C

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Polymer hybrids from self‐emulsified PU anionomer and water‐reducible acrylate copolymer via a postcuring reaction

Lai

Ling

Chen

et al. 2003

J of Applied Polymer Sci

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Water-reducible acrylate copolymer is obtained from a free-radical copolymerization of n-butyl acrylate, acrylic acid, and methacrylic acid. Self-emulsified aqueous-based polyurethane (PU) anionomer is prepared by the conventional method. The latent curing agents (di-and triaziridinyl compounds, HDDA-AZ and TMPTA-AZ) are synthesized from the reaction of aziridine with hexandiol diacrylate and trimethylolpropane triacrylate, respectively. These two polymers and the latent curing agent are miscible in each other and become a single component and selfcurable polymer dispersion. The carboxyl ions of polymers not only stabilize the aqueous polymer dispersions but also serve the curing site toward latent curing agent in the drying process. These two polymers blend with a curing agent, which results in new polymer hybrid formation. These polymer hybrids have the improvements on performance properties and the cost/performance benefits.

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Synthesis, Physicochemical Characterization, and Applications of Polyurethane Ionomers: A Review

Cited by 35 publications

References 194 publications

Synthesis and characterization of polyurethane anionomers

Synthesis and characterization of polyurethane anionomers

Applications of Isocyanation for Polymer Systems

Polymer hybrids from self‐emulsified PU anionomer and water‐reducible acrylate copolymer via a postcuring reaction

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