Abstract
Syndiotactic-heterotactic poly (sodium methacrylate) s with molecular weight 88032140, isotactic poly (sodium methacrylate) s with molecular weight 82013470 and poly (disodium fumarate) s with molecular weight 4708080 were prepared, and their building performances, Ca2+ sequestering capacity and dispersing power for MnO2, and the detergency on soiled cotton fabrics were also determined for the builders (with/ without sodium dodecylbenzene sulfonate) and compared with the corresponding properties for sodium tripolyphosphate (STPP) and disodium 3-oxapentanedioate (ODA).
It was evident that poly (disodium fumarate) s showed better building performances than STPP, and the most effective molecular weight for these oligomers were 3630.
The building performances and the detergency were dependent on their molecular weights of the oligomers and the most effective molecular weight (Mn) was10004000.
The building performances and the detergency varied with their tacticities of the oligomers. Isotactic poly (sodium methacrylate) s showed better properties than syndiotactic-heterotactic poly (sodium methacrylate)s.
