TY - JOUR
T1 - Dispersion properties of BaTi4O9/Ba2Ti9O20 colloids with amphoteric polyelectrolytes
AU - Chen, Chin Hao
AU - Hsu, Kung Chung
N1 - Funding Information:
The authors are grateful for the support extended to this work by the National Science Council of The Republic of China (Contract # NSC-92-2211-E-003-003).
PY - 2007
Y1 - 2007
N2 - An amphoteric water-soluble copolymer, i.e., polyacrylamide/(α-N,N-dimethyl-N-(3-(β-carboxylate)acrylamino)propyl) ammonium ethanate (PAM/DAE) was synthesized and used as a dispersion agent for BaTi4O9/Ba2Ti9O20 (BT4/B2T9) particles. PAM/DAE was prepared from acrylamide and (α-N,N-dimethyl-N-(3-(β-carboxylate)acrylamino)propyl) ammonium ethanate in a basic condition through a free radical polymerization. The dispersing property of this copolymer was examined by means of rheology, particle size, and leached Ba2+ concentration measurements. The results indicate that PAM/DAE could reduce the viscosity of slurries greatly, and cause BT4/B2T9 particle sizes a shift to smaller values. Compared with a commercial dispersant, ammonium salt of poly(methacrylic acid) (PMAA-NH4), PAM/DAE is as effective in preparing dispersed suspensions. More importantly, PAM/DAE could lessen the leached Ba2+ concentration.
AB - An amphoteric water-soluble copolymer, i.e., polyacrylamide/(α-N,N-dimethyl-N-(3-(β-carboxylate)acrylamino)propyl) ammonium ethanate (PAM/DAE) was synthesized and used as a dispersion agent for BaTi4O9/Ba2Ti9O20 (BT4/B2T9) particles. PAM/DAE was prepared from acrylamide and (α-N,N-dimethyl-N-(3-(β-carboxylate)acrylamino)propyl) ammonium ethanate in a basic condition through a free radical polymerization. The dispersing property of this copolymer was examined by means of rheology, particle size, and leached Ba2+ concentration measurements. The results indicate that PAM/DAE could reduce the viscosity of slurries greatly, and cause BT4/B2T9 particle sizes a shift to smaller values. Compared with a commercial dispersant, ammonium salt of poly(methacrylic acid) (PMAA-NH4), PAM/DAE is as effective in preparing dispersed suspensions. More importantly, PAM/DAE could lessen the leached Ba2+ concentration.
KW - Amphoteric copolymer
KW - BaTiO and titanates
KW - Suspensions
UR - https://www.scopus.com/pages/publications/33750969978
UR - https://www.scopus.com/pages/publications/33750969978#tab=citedBy
U2 - 10.1016/j.jeurceramsoc.2006.04.094
DO - 10.1016/j.jeurceramsoc.2006.04.094
M3 - Article
AN - SCOPUS:33750969978
SN - 0955-2219
VL - 27
SP - 463
EP - 468
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
IS - 2-3
ER -