马来酸乙二醇酯、丙烯酸共聚物合成与在水质稳定上的应用研究

SYNTHESIS OF MALEATE ACRYLIC ACID COPOLYMERS AND THEIR APPLICATION FOR WATER TREATMENT AGENT

合成了马来酸与乙二醇的酯化物。用该酯化物与丙烯酸二元共聚，及用该酯化物、丙烯酸、马来酸酐三元共聚，得到了两种共聚物。讨论了二元共聚物的特性粘数与单体用量的关系，并测定了二元共聚物及三元共聚物对Ｃａ２＋的螯合能力。

Maleate acrylic acid copolymers were prepared from glycol maleate(MEM),acrylic acid(AA)and MEM,AA,maleic anhydride(MA).The chelation of maleate acrylic acid copolymer for calcium ion in water was determined by Ca 2+ ion selective electrode analysis.The results showed that adding the copolymer into well water(2.0×10 -3 molCa 2+ /L)and drinking water(7.1×10 -4 molCa 2+ /L)at concertration of 0.2% and 0.04% respectively, Ca 2+ was cut down to 10 -5 mol/L,and the capacity of chelation was 3.85×10 -2 mol Ca 2+ /g copolymer. \ \