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In this study, the behaviors of adsorption of six different quaternary ammonium salts onto montmorillonite (Mt) have been investigated. One of six cationic surfactants is branched (tetrabutylammonium bromide (C4)4ABr) and the others are linear (with five different hydrocarbon chain lengths, i.e. C16TABr, C14TABr, C12TABr, C10TABr, and C8TABr).The organoclays were characterized by spectroscopic techniques...
Protein precipitation using non-charged and charged polymers is a common method for protein purification, gaining broader interest among manufacturers in downstream processing. While during polymer- surface interactions, the formation of loops, tails and trains has been known for quite a long time, details of polymer conformation and chain length, interacting with the protein during protein precipitation...
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