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Synthesis and application of an anionic water‐soluble copolymer as a dispersant for barium titanate slurries
Author(s) -
Chen LungPin,
Wu HsinHsuan,
Hsu KungChung
Publication year - 2005
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.22051
Subject(s) - copolymer , dispersant , materials science , dispersion polymerization , acrylamide , dispersion (optics) , barium titanate , viscosity , polymer chemistry , particle size , chemical engineering , slurry , radical polymerization , particle (ecology) , intrinsic viscosity , polymer , composite material , ceramic , physics , oceanography , geology , optics , engineering
Abstract An anionic water‐soluble copolymer, poly(acrylamide/4‐carboxylamino‐4‐oxo‐2‐butenate) (PAAM/COB), was synthesized and used as a dispersion agent for BaTiO 3 particles. PAAM/COB was prepared from acrylamide and 4‐carboxylamino‐4‐oxo‐2‐butenate in basic conditions through free‐radical polymerization. The structure of this copolymer was verified by IR and 1 H‐NMR spectra. We examined the dispersion effects of PAAM/COB by measuring the viscosity and sedimentation of BaTiO 3 suspensions and by analyzing the particle sizes. The results indicate that this copolymer was indeed effective in dispersing the particles, for the resulting suspensions were less viscous, more stabilized, and contained powder with smaller particle sizes. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 98: 109–115, 2005