The Influence of Sodium Alginate on the Properties of Poly(ethylene oxide) as the Matrix for the Preparation of Solid Polymer Electrolyte
Autor: | Antonija Sesar, Zoran Grubač, Sanja Perinović Jozić, Branka Andričić |
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Rok vydání: | 2020 |
Předmět: |
Materials science
Hydrogen bond General Chemical Engineering General Chemistry impedancija poli(etilen-oksid) natrijev alginat vodikova veza kristalnost toplinska postojanost lcsh:Chemistry Crystallinity lcsh:QD1-999 poly(ethylene oxide) sodium alginate hydrogen bond crystallinity thermal stability impedance Thermal stability Sodium alginate Nuclear chemistry |
Zdroj: | Kemija u Industriji, Vol 69, Iss 9-10, Pp 503-514 (2020) Kemija u industriji : Časopis kemičara i kemijskih inženjera Hrvatske Volume 69 Issue 9-10 (special issue) |
ISSN: | 1334-9090 0022-9830 |
Popis: | Istraživan je utjecaj natrijeva alginata (NaAlg) na strukturu i svojstva filmova poli(etilen-oksida) (PEO) izlivenih iz vodenih otopina primjenom infracrvene spektroskopije s Fourierovom transformacijom (FT-IR), diferencijalne pretražne kalorimetrije (DSC), neizotermne termogravimetrije (TG) i elektrokemijske impedancijske spektroskopije (EIS). Cilj istraživanja je pronalaženje optimalne mješavine za pripravu filma čvrstog polimernog elektrolita (SPE) za litij-ionske baterije (LIB). U filmovima mješavina PEO/NaAlg stvaraju se vodikove veze između PEO-a i NaAlg-a te nastaju mješljive mješavine s manjim udjelom kristalne faze u odnosu na film čistog PEO-a. Filmovi mješavina toplinski su nestabilniji od filma čistog PEO-a i pokazuju dielektrična svojstva. Zbog najmanjeg udjela kristalne faze PEO-a mješavina 80PEO/20NaAlg može biti polimerna matrica koja bi dodatkom litijeve soli tvorila pogodan SPE. Ovo djelo je dano na korištenje pod licencom Creative Commons Imenovanje 4.0 međunarodna. Investigation of the influence of sodium alginate (NaAlg) on the structure and properties of poly(ethylene oxide) (PEO) films cast from aqueous solutions was performed by Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), non-isothermal thermogravimetry (TG), and electrochemical impedance spectroscopy (EIS). The research aimed to find the optimal blend for the preparation of a solid polymer electrolyte (SPE) film for lithium-ion batteries (LIB). In PEO/NaAlg blend films, hydrogen bonds are formed between PEO and NaAlg, the blends are miscible, and have a lower content of crystalline phase compared to pure PEO film. The films of the blends are more thermally unstable than the film of pure PEO, and show dielectric properties, but the blend 80PEO/20NaAlg is suitable for the preparation of SPE by addition of lithium salt due to the lowest content of PEO crystalline phase. This work is licensed under a Creative Commons Attribution 4.0 International License. |
Databáze: | OpenAIRE |
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