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Synthesis and electrorheology of potato starch phosphate
Author(s) -
Park Dong P.,
Sung Jun H.,
Kim Chul Am,
Choi Hyoung J.,
Jhon Myung S.
Publication year - 2003
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.13288
Subject(s) - electrorheological fluid , starch , potato starch , phosphate , phosphoric acid , silicone oil , urea , granule (geology) , materials science , chemical engineering , ammonium phosphate , composite material , polymer chemistry , chemistry , organic chemistry , electric field , fertilizer , physics , quantum mechanics , engineering
Potato starch phosphate (PSP) particles were synthesized via an esterification process of potato starch with a mixture of various concentrations of phosphoric acid and urea. The electrorheological (ER) characteristics of the synthesized PSP particles, suspended in a silicone oil, were examined. The PSP granule‐based ER fluid exhibited typical ER behavior, possessing a nonvanishing yield stress under an applied electric field. Enhanced polarization and higher yield stresses were observed as the content of phosphate groups in the starch increases. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 91: 1770–1773, 2004