This paper describes the synthesis and characterization of β-naphthalene sulfonate formaldehyde condensate (BNS) polymers grafted with pendant polyether molecules. For over 40 years, BNS have been considered as commercially useful material in the area of construction. It is added to concrete or mortar to give the concrete better properties either when fluid or plastic. It gives an adequate workability without the addition of extra water. BNS allow a large reduction of water content without affecting the workability of concrete as an example. Finally, the addition of BNS leads to simultaneous increase in both strength and workability without adding extra cost.
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