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Synthesis and solution properties of a betaine-sulfur dioxide polyampholyte

  • S. A. Ali*
  • , A. Rasheed
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

The copolymer 7 of quaternary ammonium salt, N,N-diallyl-N- carboethoxymethyl-N-methylammonium chloride (5) and sulfur dioxide were synthesized in excellent yield. The polyelectrolyte 7 on acidic hydrolysis gave the polyampholyte 8 readily in excellent yield. The solution properties of these polymers are discussed in detail. The polyampholyte 8 was found to be insoluble in water but dissolved readily in the presence of low molecular weight common salts. The polyampholyte shows 'anti-polyelectrolyte' behavior; the viscosity of the polyampholyte increases by increasing the ionic strength of its aqueous solutions.

Original languageEnglish
Pages (from-to)6849-6857
Number of pages9
JournalPolymer
Volume40
Issue number24
DOIs
StatePublished - Nov 1999

Keywords

  • Poly(quaternary ammonium salts)
  • Polyampholyte
  • Polybetaine

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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