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Drop stabilisation by inorganic solids in suspension polymerisation: modification by electrolytes using a wax model
Author(s) -
Zhiping Wang,
Brooks B. W.
Publication year - 1992
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990280310
Subject(s) - electrolyte , stabiliser , magnesium , suspension (topology) , phosphate , drop (telecommunication) , wax , sodium , materials science , inorganic chemistry , chemical engineering , chemistry , magnesium phosphate , organic chemistry , nanotechnology , telecommunications , mathematics , electrode , homotopy , computer science , pure mathematics , engineering
Finely divided inorganic solids can be used for drop stabilisation in suspension polymerisation. Usually solids are dispersed in water in the presence of electrolytes formed during their preparation. Experiments, using a wax model as described previously, 1 have been carried out by using two inorganic solids, magnesium phosphate and calcium phosphate, in either the presence or absence of electrolytes. The experiments showed that the effect of electrolytes depends on both the inorganic solid which is used and on the nature of the electrolyte which is present. Magnesium phosphate was a destabiliser in the absence of electrolytes but could act as a stabiliser in the presence of sodium sulphate. Calcium phosphate acted as a stabiliser both in the presence and in the absence of electrolytes.