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For two polyphosphinoacrylates, PPAA-I and PPAA-II, and a random copolymer of maleic acid and vinyl sulfonic acid, PMA-PVS, the levels of adsorption equilibrium on BaSO 4 crystals were determined as a function of their concentration and related to the formerly established growth-inhibiting effect of these compounds on BaSO 4 crystallization. The best growth retarder of the two polyphosphinoacrylates,...
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