Synthesis and characterization of phosphonated Poly(ethylene terephthalate) ionomers

Lin Ju, Juan Pretelt, Tianran Chen, Joseph M. Dennis, Katherine V. Heifferon, Donald G. Baird, Timothy Edward Long, Robert B. Moore

研究成果: Article

抄録

A more efficient route for the synthesis of phosphonated dimethyl isophthalate, disodium salt is shown to provide a significantly higher yield (42%), in contrast to a previously reported yield (15%). This higher yield enabled the synthesis of phosphonated poly(ethylene terephthalate) (PPET) ionomers using conventional melt polycondensation with ethylene glycol and dimethyl terephthalate. The physical properties of these phosphonated PET ionomers (Na+-PPET) were characterized using differential scanning calorimetry (DSC), melt rheology, and tensile testing. DSC analysis showed that the crystalline melting temperatures, crystallization temperatures, degrees of crystallinity, and crystallization rates decreased with increasing ionic content. Melt rheology confirmed the existence of physical crosslinks in Na+-PPET ionomers, as indicated by a crossover of the storage and loss moduli, attributed to strong electrostatic associations between phosphonated units on the polymer chains. Tensile tests of the Na+-PPET samples showed enhanced Young's modulus and yield stress compared to pure PET.

元の言語English
ページ(範囲)154-163
ページ数10
ジャーナルPolymer
151
DOI
出版物ステータスPublished - 2018 8 29
外部発表Yes

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Polyethylene Terephthalates
Ionomers
Polyethylene terephthalates
Crystallization
Rheology
Differential scanning calorimetry
Ethylene Glycol
Tensile testing
Polycondensation
Ethylene glycol
Yield stress
Melting point
Electrostatics
Polymers
Physical properties
Elastic moduli
Salts
Crystalline materials
Temperature

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

これを引用

Ju, L., Pretelt, J., Chen, T., Dennis, J. M., Heifferon, K. V., Baird, D. G., ... Moore, R. B. (2018). Synthesis and characterization of phosphonated Poly(ethylene terephthalate) ionomers. Polymer, 151, 154-163. https://doi.org/10.1016/j.polymer.2018.07.065

Synthesis and characterization of phosphonated Poly(ethylene terephthalate) ionomers. / Ju, Lin; Pretelt, Juan; Chen, Tianran; Dennis, Joseph M.; Heifferon, Katherine V.; Baird, Donald G.; Long, Timothy Edward; Moore, Robert B.

:: Polymer, 巻 151, 29.08.2018, p. 154-163.

研究成果: Article

Ju, L, Pretelt, J, Chen, T, Dennis, JM, Heifferon, KV, Baird, DG, Long, TE & Moore, RB 2018, 'Synthesis and characterization of phosphonated Poly(ethylene terephthalate) ionomers', Polymer, 巻. 151, pp. 154-163. https://doi.org/10.1016/j.polymer.2018.07.065
Ju L, Pretelt J, Chen T, Dennis JM, Heifferon KV, Baird DG その他. Synthesis and characterization of phosphonated Poly(ethylene terephthalate) ionomers. Polymer. 2018 8 29;151:154-163. https://doi.org/10.1016/j.polymer.2018.07.065
Ju, Lin ; Pretelt, Juan ; Chen, Tianran ; Dennis, Joseph M. ; Heifferon, Katherine V. ; Baird, Donald G. ; Long, Timothy Edward ; Moore, Robert B. / Synthesis and characterization of phosphonated Poly(ethylene terephthalate) ionomers. :: Polymer. 2018 ; 巻 151. pp. 154-163.
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AU - Dennis, Joseph M.

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AU - Baird, Donald G.

AU - Long, Timothy Edward

AU - Moore, Robert B.

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AB - A more efficient route for the synthesis of phosphonated dimethyl isophthalate, disodium salt is shown to provide a significantly higher yield (42%), in contrast to a previously reported yield (15%). This higher yield enabled the synthesis of phosphonated poly(ethylene terephthalate) (PPET) ionomers using conventional melt polycondensation with ethylene glycol and dimethyl terephthalate. The physical properties of these phosphonated PET ionomers (Na+-PPET) were characterized using differential scanning calorimetry (DSC), melt rheology, and tensile testing. DSC analysis showed that the crystalline melting temperatures, crystallization temperatures, degrees of crystallinity, and crystallization rates decreased with increasing ionic content. Melt rheology confirmed the existence of physical crosslinks in Na+-PPET ionomers, as indicated by a crossover of the storage and loss moduli, attributed to strong electrostatic associations between phosphonated units on the polymer chains. Tensile tests of the Na+-PPET samples showed enhanced Young's modulus and yield stress compared to pure PET.

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KW - Polyester ionomer

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