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Zhong, J. Poly(Ethylene Oxide). Encyclopedia. Available online: https://encyclopedia.pub/entry/61211 (accessed on 09 November 2026).
Zhong J. Poly(Ethylene Oxide). Encyclopedia. Available at: https://encyclopedia.pub/entry/61211. Accessed November 09, 2026.
Zhong, Jack. "Poly(Ethylene Oxide)" Encyclopedia, https://encyclopedia.pub/entry/61211 (accessed November 09, 2026).
Zhong, J. (2026, October 21). Poly(Ethylene Oxide). In Encyclopedia. https://encyclopedia.pub/entry/61211
Zhong, Jack. "Poly(Ethylene Oxide)." Encyclopedia. Web. 21 October, 2026.

Poly(Ethylene Oxide)

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Poly(ethylene oxide) is a polyether with a repeat unit of two carbons and one oxygen, and it is unusual in being soluble in both water and several organic solvents. The ether oxygen coordinates cations, which is why the polymer can dissolve a lithium salt and conduct ions in the amorphous phase [1]. Crystallinity blocks conduction, so the conductivity falls sharply above a salt concentration that favours crystalline complexes [2]. The melting point is around 65 degrees Celsius and the glass transition is well below room temperature, so the amorphous fraction is substantial at service temperature [3]. Blending with a second polymer or with a nanoparticle suppresses crystallisation and raises the conductivity [4]. The same coordination makes the polymer a steric stabiliser and a flocculant for clay suspensions [5].

polyether lithium ion conduction crystallinity glass transition polymer electrolyte steric stabilizer salt complex
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Synthesis and properties of polymers·Polymers and Plastics·Materials Science·Physical Sciences

References

  1. Liu, J.p.; He, S.a.; Qiao, X.p. SPHERULITIC STRUCTURE AND MORPHOLOGY OF POLY(ETHYLENE SUCCINATE)/POLY(ETHYLENE OXIDE) (PES/PEO) BLENDS WITH ONE-STEP CRYSTALLIZATION. Chinese Journal of Polymer Science 2008, 26, 697. [CrossRef]
  2. Patla, S.K.; Mukhopadhyay, M.; Ray, R. Ion specificity towards structure-property correlation of poly (ethylene oxide) [PEO]-NH4I and PEO-KBr composite solid polymer electrolyte. Ionics 2019, 25, 627-639. [CrossRef]
  3. Eslami, B.; Ghasemi, I.; Esfandeh, M. Using Pegylated Graphene Oxide to Achieve High Performance Solid Polymer Electrolyte Based on Poly(ethylene oxide)/Polyvinyl Alcohol Blend (PEO/PVA). Polymers 2023, 15, 3063. [CrossRef]
  4. Park, J.H.; Kim, J.K. Electrochemical Properties of Ionic Liquid Composite Poly(ethylene oxide)(PEO) Solid Polymer Electrolyte. Journal of the Korean Electrochemical Society 2016, 19, 101-106. [CrossRef]
  5. Kripotou, S.; Psylla, C.; Kyriakos, K.; Raftopoulos, K.N.; Zhao, J.; Zhang, G.; Pispas, S.; Papadakis, C.M.; Kyritsis, A. Structure and Crystallization Behavior of Poly(ethylene oxide) (PEO) Chains in Core–Shell Brush Copolymers with Poly(propylene oxide)- block -poly(ethylene oxide) Side Chains. Macromolecules 2016, 49, 5963-5977. [CrossRef]
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Subjects: Polymer Science
Contributor MDPI registered users' name will be linked to their SciProfiles pages. To register with us, please refer to https://encyclopedia.pub/register : Jack Zhong
View Times: 8
Entry Collection: Polymer Concepts
Revisions: 2 times (View History)
Update Date: 23 Oct 2026
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