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Structural evolution of barite particles using a polymer with double hydrophilic ionic moieties as additive
Author(s) -
Zhang Xiaohui,
Yan FengWen,
Guo CunYue,
Li Fengbo,
Yuan Guoqing
Publication year - 2011
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.201100368
Subject(s) - polymer , ionic bonding , dissociation (chemistry) , ionic crystal , chemistry , ionic strength , chemical engineering , barium , polymer chemistry , sulfate , inorganic chemistry , ion , organic chemistry , aqueous solution , engineering
BaSO 4 particles with uniform size distribution were obtained using polymer with double hydrophilic ionic moieties as crystal growth modifier. Based on the difference of the dissociation constant pKa between both functional groups, structural evolution of barium sulfate from spherical aggregates to round tablets was conveniently achieved by merely adjusting the pH values of solution. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)