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Glass polyalkenoate dental cements based on physical blends of poly(acrylic acid) and poly(vinyl phosphonic acid)
Author(s) -
Akinmade Ademola O.,
Braybrook Julian H.,
Nicholson John W.
Publication year - 1994
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.1994.210340111
Subject(s) - acrylic acid , materials science , molar mass , molar ratio , polymer chemistry , vinyl ester , composite material , acrylic resin , molar , compressive strength , mixing (physics) , chemical engineering , organic chemistry , chemistry , polymer , monomer , dentistry , catalysis , coating , medicine , physics , quantum mechanics , engineering
Physical blends of spray‐dried poly(acrylic acid), PAA, with poly(vinyl phosphonic acid), PVPA, have been prepared and used in experimental dental cements by mixing them with basic sub‐45 μm acid‐degradable fluoroaluminosilicate glass powders and adding water. The effect of varying the ratio of PAA to PVPA, of altering the molar mass of PAA, and of using glasses of differing basicity have been investigated. The compressive strengths of the best of the cements formed from these blends were comparable to those formed from the individual polyacids, i.e. about 160 MPa.