含膦酰基的MA-AA-AM-SMAS四元共聚物阻垢剂的制备  

Preparation of Tetra-Polymer Scale Inhibitor of MA-AA-AM-SMAS Containing the Phosphoryl

作　　者：黄杰[1] 刘明华[1] 

机构地区：[1]福州大学环境与资源学院,福建福州350002

出　　处：《石油化工高等学校学报》2006年第2期13-16,共4页Journal of Petrochemical Universities

基　　金：福建省青年科技人才创新基金(2002J002);福建省教育厅项目(JA03012);福建省南平市科技局资助项目(N2004Z08)。

摘　　要：以马来酸酐(MA)、丙烯酸(AA)、丙烯酰胺(AM)、甲代烯丙基磺酸钠(SMAS)等为原料,以过氧化氢为引发剂,通过水溶液聚合反应和膦酰化反应合成四元共聚物阻垢剂MA-AA-AM-SMAS(PMAAS),并分别探讨了四元共聚物制备和膦酰化反应最佳条件。实验结果表明,四元共聚物最佳制备条件为:n(MA)/n(AA)/n(AM)/n(SMAS)=11∶1.5∶1.0∶1.0,引发剂质量为单体总质量的15%,反应温度为90℃,反应时间为4 h;膦酰化反应的最佳反应条件为:甲醛质量为共聚物总质量的5.0%,亚磷酸质量为共聚物总质量的3.5%,反应温度为90℃,反应时间为2 h。在上述条件下,PMAAS质量浓度为7 mg.L-1时,对CaCO3阻垢率可达99%,对CaSO4阻垢率达88.5%。经红外光谱分析结果表明,四元共聚物阻垢剂PMAAS中含有羧基、膦酰基、磺酸基等官能团。The tetra - polymer scale inhibitor of MA- AA AM SMAS was prepared by aqueous silution polymerization and phosphorylation of monomers. Maleic anhydride（MA）, acrylic acid（AA）, acrylamide（AM）, sodium methyl allysulfonate（SMAS） and H2O2 are used as the raw material and initiator. At the same time, the optimization of polymerization conditions and phosphorylation procedures were explored. The results show that PMAAS can be obtained under such optimum polymerization conditions that molar ratio of MA, AA, AM and SMAS is 11 ： 1.5 ： 1.0 ： 1.0, the mars fraction of H2O2 is 15 % at 90 ℃ for 4 h. The optimal phosphorylation conditions is that mars fraction of HCHO is 5.0%, mass fraction of H3PO3 is 3.5% at 90 ℃ for 2 h. Under the above optimum conditions, the scale inhibition percentage can reach to 99 %, 88, 5 % for CaCO3 and CaSO4 when the mass concentration of PMAAS is 7 mg· L^-1, The analytical results of FTTR indicate that the prepared tetra- polymer contains such functional anionic groups as earboxyl, phosphonyl and sulphonate groups.

关 键 词：阻垢荆 四元共聚物 马来酸酐 丙烯酰胺 有机膦酸 

分 类 号：TQ326.4[化学工程—合成树脂塑料工业]