标题：Comportement de polyacrylate de sodium au contact des solutions aqueuses en absence et en presence d’ions métalliques (Ag+, Cu2+, Cr3+) (Behaviour of sodium polyacrylate in contact with aqueous solutions in the absence and the presence of ions metal (Ag+, Cu2+, Cr3+)),
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2015
卷号：6
期号：4
页码：1060-1067
出版社：University of Mohammed Premier Oujda
摘要：The present work is to study the swelling behavior of sodium polyacrylate (PANa) in powder form in aqueous solution. The principal experimental results show that the swell ratio (Q eq ) of this polymer depends on several parameters (the presence of metal, the change ion-cons, the temperature, the pH of medium ...). Indeed, in the presence of distilled water only the polymer is capable of retaining its macromolecular chains between more than 300 times its weight in water. This value decreases with increasing concentration of the supernatant solution of the salt or of the metal. As cons, Q eq values increases with less acid pH (Q eq =229 at pH=7) and with the increasing temperature (Q eq =313 at T=70°C).
