Effects of the conductivity of sulfonated poly(phenylene oxide) lithium by the complexation of poly(ethylene oxide)

✍ Scribed by C. Q. Wang; Y. H. Huang; B. Liao; S. L. Zhao; G. Lin; G. M. Cong

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 326 KB
• Volume: 7
• Category: Article
• ISSN: 1042-7147
• DOI: 10.1002/(sici)1099-1581(199608)7:8<697::aid-pat568>3.0.co;2-m

✦ Synopsis

In the present paper, the structure and conductivity for the complex of sulfonated poly(pheny1ene oxide) lithium (SPPOLi) and poly(ethy1ene oxide) (PEG) were studied. Glass transition temperature change determined by differential scanning calorimeter analysis desmonstrated that the two components had some compatibility. X-ray diffraction showed that PEG could decrease the regularity of SPPOLi to some extent. The compatibility and PEGS effect on the regularity may be due to the interaction between the lithium ions of SPPOLi and the oxygen atoms of PEG. Under polarization by electric field, the bands between lithium ions and sulfonation groups relaxed. Meanwhile, the complexation of oxygen atoms could enhance the dissociation of the polymeric lithium salts. Then lithium ions were transported in the process of alternate complexing and decomplexing. The action between lithium ions and oxygen atoms could explain the improvement on the conductivity of SPPOLi.