Amphibious Water-Soluble Copolymer. I. Its Synthesis and Dispersing Ability on Barium Titanate

Lung Pin Chen, Kuo Liang Ying, Kung Chung Hsu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


An amphibious water-soluble copolymer, polyacrylamide/(α-N,N- dimethyl-N-acryloyloxyethyl) ammonium ethanate (PAAM/DAAE), was synthesized and used as a dispersion agent for BaTiO3 particles. PAAM/DAAE was prepared from acrylamide and (α-N,N-dimethyl-N-acryloyloxyethyl) ammonium ethanate under basic conditions through a free-radical polymerization. The structure of this copolymer was verified with IR and 1H-NMR spectra. The dispersing effects of PAAM/DAAE were examined through the measurement of the viscosity and sedimentation of BaTiO3 suspensions and the green density. The results indicated that this copolymer could uniformly disperse the particles, reduce the viscosity, stabilize the suspensions, and produce high-density green compacts. In comparison with a commercial dispersant, the ammonium salt of poly(methylacrylic acid), PAAM/DAAE was clearly more effective.

Original languageEnglish
Pages (from-to)2232-2239
Number of pages8
JournalJournal of Applied Polymer Science
Issue number4
Publication statusPublished - 2004 May 15
Externally publishedYes


  • Dispersions
  • Polyelectrolytes
  • Synthesis

ASJC Scopus subject areas

  • General Chemistry
  • Surfaces, Coatings and Films
  • Polymers and Plastics
  • Materials Chemistry


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