简介:Alkali-solubleassociativelatexthickenersmodifiedwithhydrophobiclongchainalkylgroupswerepreparedusingcommonacrylicsandvaryingamountofafunctionalmonomer,ethoxylatedbehenylmethacrylate(BEM),throughemulsionpolymerization.ItwasfoundthatthesizeoftheemulsionparticlebecamelargerwithadditionofBEM.ThelighttransmittanceofthethickenerlatexsharplyincreasedwithpHvariedfrom6to7.Theassociativelatexthickenermanifestedahigherviscositywhensolidsinthelatexthickenerswerekeptat0.5wt%orhigher,andtheoptimalamountofBEMwasfoundtobearound2.5wt%,or0.16mol%.AllthickenerlatexesmodifiedwithBEMhavebettershearingresistancethantheBEM-freethickener.