低磷型膦酰基羧酸聚合物的合成及性能研究  

SYNTHESIS OF PHOSPHONO CARBOXYLIC ACID COPOLYMER WITH LOW PHOSPHOR AND ITS PROPERTY

作　　者：孟宁[1] 李师翁[1] 王飞[1] 

机构地区：[1]兰州交通大学化学与生物工程学院,甘肃兰州730070

出　　处：《水处理技术》2009年第9期45-47,共3页Technology of Water Treatment

摘　　要：以水为溶剂,马来酸酐(MA)、2-丙烯酰胺-2-甲基-丙磺酸(AMPS)和次亚磷酸钠以及过硫酸铵等为原料,合成了多功能水处理剂膦酰基羧酸共调聚合物。探讨了反应温度、单体配比、引发剂用量等对共聚物阻垢性能的影响。结果表明,当m(MA):m(AMPS)=3:4,引发剂占单体总质量的6.67%,次亚磷酸钠占单体总质量的12.5%,反应温度为75℃,反应时间为3.5h时,所得产品对阻止碳酸钙、磷酸钙和氢氧化锌综合性能达到优良水平。Aphosphono carboxylic acid cotelomerwas prepared from maleic anhydride（MA）, 2-acrylamido-2-methylpropane（AMPS）, NaH2PO2and （NH4）S2O8 The polymerization was initiated in an aqueous solution. Factors affecting the scale inhibiting efficiency were discussed, such as reaction temperature, the ratio of monomers and the amount of initiator. The optimal synthetic conditions were： m （MA）：m （AMPS）=3：4, concentration of （NH4）2S208=6.67%, concentration of NaH2PO2=12.5%, reaction temperature 75℃ and reaction time 3.5 hours. Then the product showed quite good effect on reducing scale depositions of CaCO3, Ca3（PO4）2 and Zn（OH）2.

关 键 词：低磷 膦酰基羧酸 合成 阻垢 

分 类 号：TQ085.4[化学工程]