Solution behavior of ionomer blends - II. Acid base interactions in blends of poly(phenylene oxide) ionomers and poly(styrene-4-vinylpyridine)

Yan Pan, Yuhui Huang*, Mingcai Cheng, Guangmin Cong, Louis M L Leung

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

7 Citations (Scopus)

Abstract

The solution behavior of blends of poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) ionomers (carboxylated PPO, CPPO, or sulfonated PPO, SPPO) and poly(styrene-4-vinylpyridine) (PSVP) was investigated. The reduced viscosities of both the two series of blends were higher than those of comparable blends composed of PPO and PSVP. This was attributed to the acid-base interactions resulting from proton transfer between the acid groups of the PPO ionomer and the vinylpyridine groups of the PSVP. The existence of proton transfer between sulfonic acid and the pyridine group was confirmed by 1H NMR studies on SPPO/4-VP blend. Moreover, the effects of functionalization level, solution concentration and cosolvent content on the strength of the acid-base interaction were discussed.

Original languageEnglish
Pages (from-to)213-217
Number of pages5
JournalEuropean Polymer Journal
Volume34
Issue number2
Publication statusPublished - 1 Feb 1998

Scopus Subject Areas

  • Physics and Astronomy(all)
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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