Conducting blends of poly(2-vinyl pyridine) and polyethylene oxide with high molecular weight

Minhui Cui, Junshi Guo, Hongquan Xie, Donghua Cheng

Research output: Contribution to journalArticle

Abstract

Ionic, electronic and mixed (ionic-electronic) conductivities of blends of poly(2-vinyl pyridine) (P2VP) and poly(ethylene oxide) (PEO) with high molecular weight after doped with LiClO4, TCNQ or LiClO4 and TCNQ were investigated. Effects of LiClO4 and TCNQ concentrations on the conductivity of PEO/P2VP/LiClO4 or TCNQ blend were studied. The ionic conductivity of PEO/P2VP/LiClO4 blend increases with increasing PEO content. At a Li/ethylene oxide molar ratio of 0.10 and a TCNQ/2-vinyl pyridine molar ratio of 0.5, the mixed conductivity of PEO/P2VP/LiClO4/TCNQ is higher than the total of ionic conductivity of PEO/P2VP/LiClO4 and electronic conductivity of PEO/P2VP/TCNQ when the weight ratio of PEO and P2VP is 6/4 or 5/5. Scanning electron microscopy (SEM) on the broken cross-section of the PEO/P2VP/LiClO4 blend and differential scanning calorimetry (DSC) results show that LiClO4 could act as a compatibilizer in the blend.

Original languageEnglish (US)
Pages (from-to)x4-33
JournalChinese Journal of Polymer Science (English Edition)
Volume15
Issue number1
Publication statusPublished - Dec 1 1997
Externally publishedYes

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Keywords

  • Compatibilizing effect
  • Lithium perchlorate
  • Mixed (ionic-electronic) conductivity
  • Poly(2-vinyl pyridine)
  • Polyethylene oxide

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Organic Chemistry
  • Polymers and Plastics

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