Study On The Synthesis Technique Optimization And The Performance Of A Phosphorus-containing Sulphonate Copolymer (Ⅱ)

This paper has two parts: A, the amplifying experiments are made basic on thepredecessor's researches: the water dissolved copolymer containing phosphonic acid, carboxylic acid andsulphonic groups are synthesized from the monomers of acrylic acid (AA) and 2-acrylamido-2-methylpropanesufonic acid (AMPS), by sodium hypophosphite-sodium persulfate as initiators. The experiments are preparing for pilot test and industrialization. B, the water dissolved sulfonic acid group containing new copolymer is synthesized from the raw material of acrylic acid (AA) and sodium 1-allyloxy-2-hydroxypropl sulfonate (COPS-1), by water as solvent and sodium hypophosphite-sodium persulfate as initiators. The advance of the copolymer is the newest stage in abroad developing water dissolved polymer scale inhibitor.Except the synthesis and amplifying experiments, the effects of the monomer's ratio, the amount of initiator, reaction temperature and reaction time, and the way of adding raw material corresponding to the copolymer scale inhibiting performance are studied with optimization in the experiments. The optimum synthesis technique plan is obtained, and the effects are compared with other ordinary scale inhibitors. The results show that the production cost of the polymeric water treatment additive is cut down considerably with optimized synthesis technique, and the copolymer has obvious scale inhibiting and dispersing performance.The structure research and character analysis are made with infrared spectrometry, thermal analysis and other methods. Combining the polymerizing mechanism, the primary theory of the synthesis reaction process is explained.