Thermal Behavior of Polyurethane Ionomers Based on Amino Ethers of Orthophosphoric Acid

Davletbaeva, I. M.; Sazonov, O. O.; Fazlyev, A. R.; Zakirov, I.N.; Davletbaev, R. S.; Ефимов, С. В.; Клочков, В. В.

doi:10.1134/s0965545x2005003x

Cited by 6 publications

(4 citation statements)

References 51 publications

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“…In works, 69,70 polyurethane ionomers (AEPA-PU) based on aminoethers of ortho-phosphoric acid (AEPA) were obtained. It was found that during the preparation of AEPA using triethanolamine as a catalyst and a branching center, a branched compound is formed, in which, due to incomplete ether-ication of H 3 PO 4 with triethanolamine and polyoxypropylene glycol, phosphate anions are present (Fig.…”

Section: Introductionmentioning

confidence: 99%

Gel-polymer electrolytes based on polyurethane ionomers for lithium power sources

et al. 2021

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Section: Introductionmentioning

confidence: 99%

Gel-polymer electrolytes based on polyurethane ionomers for lithium power sources

et al. 2021

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“…In [56][57][58][59], polyurethane ionomers were obtained using aminoethers of ortho-phosphoric acid (AEPA) as a polyol component. It was found that AEPA-PPG, synthesized using triethanolamine (TEOA), ortho-phosphoric acid (OPA), and polyoxypropylene glycol (PPG) with MM = 1000, is a branched structure that contains phosphate ions (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

Self-Organization of Polyurethane Ionomers Based on Organophosphorus-Branched Polyols

Davletbaeva,

Sazonov,

Zakirov

et al. 2024

Polymers

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Based on organophosphorus branched polyols (AEPAs) synthesized using triethanolamine (TEOA), ortho-phosphoric acid (OPA), and polyoxyethylene glycol with MW = 400 (PEG), vapor-permeable polyurethane ionomers (AEPA-PEG-PUs) were obtained. During the synthesis of AEPAs, the reaction of the OPA etherification with polyoxyethylene glycol was studied in a wide temperature range and at different molar ratios of the starting components. It turned out that OPA simultaneously undergoes a catalytically activated etherification reaction with triethanolamine and PEG. After TEOA is fully involved in the etherification reaction, excess OPA does not react with the terminal hydroxyl groups of AEPA-PEG or the remaining amount of PEG. The ortho-phosphoric acid remaining in an unreacted state is involved in associative interactions with the phosphate ions of the AEPA. Increasing the synthesis temperature from 40 °C to 110 °C leads to an increase in OPA conversion. However, for the AEPA-PEG-PU based on AEPA-PEG obtained at 100 °C and 110 °C, ortho-phosphoric acid no longer enters into associative interactions with the phosphate ions of the AEPA. Due to the hydrophilicity of polyoxyethylene glycol, the presence of phosphate ions in the polyurethane structure, and their associative binding with the unreacted ortho-phosphoric acid, the diffusion of water molecules in polyurethanes is enhanced, and high values of vapor permeability and tensile strength were achieved.

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“…Of particular interest are polyurethane ionomers (PUI), characterized by their ionogenic group content of 1 to 15 mol% 48 . For this reason, the PUI polymer matrix has a high capacity for self‐organization with the formation of various kinds of ion clusters 49–54 …”

Section: Introductionmentioning

confidence: 99%

“…48 For this reason, the PUI polymer matrix has a high capacity for self-organization with the formation of various kinds of ion clusters. [49][50][51][52][53][54] In References 55-57, polyurethane ionomers based on the aminoethers of ortho-phosphoric acid (AEPA) were synthesized. The synthesis of AEPA is based on the etherification reaction of ortho-phosphoric acid (OPA) in the presence of tertiary amines.…”

Section: Introductionmentioning

confidence: 99%

Dielectric properties of organophosphorus polyurethane ionomers

Davletbaeva

Sazonov

Nikitina

et al. 2021

J of Applied Polymer Sci

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The dielectric and physical‐mechanical properties of organophosphorus polyurethane ionomers based on the ethers and aminoethers of ortho‐phosphoric acid have been investigated. The influence of the content of ionogenic groups and polyphosphate structures on the dielectric properties of polyurethanes has been analyzed. It is shown that the values of dielectric permittivity and tangent of dielectric loss in a wide frequency range increase with the content of ionogenic groups in polyurethanes studied. In this case, the increase in conductivity is diffusive in nature and is due to the mobility of protons within the phosphate anion clusters. The compositions of samples with a combination of high dielectric properties and excellent physical‐mechanical and adhesion characteristics have been determined. These are samples in which polyphosphate structures are present in addition to phosphate anions.

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Thermal Behavior of Polyurethane Ionomers Based on Amino Ethers of Orthophosphoric Acid

Cited by 6 publications

References 51 publications

Gel-polymer electrolytes based on polyurethane ionomers for lithium power sources

Gel-polymer electrolytes based on polyurethane ionomers for lithium power sources

Self-Organization of Polyurethane Ionomers Based on Organophosphorus-Branched Polyols

Dielectric properties of organophosphorus polyurethane ionomers

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