含磺酸基聚环氧琥珀酸衍生物的合成及性能研究

以环氧琥珀酸（ESA）、衣康酸（IA）和苯乙烯磺酸钠（SS）为单体，过硫酸铵为引发剂，通过共聚反应得到含有羧基和磺酸基的三元共聚物ESA/IA/SS，利用IR对其结构进行了表征。考察了单体质量比、引发剂含量、聚合温度和聚合时间对共聚物阻碳酸钙性能的影响。实验结果显示：ESA/IA/SS的最佳合成条件为m(MA):m(IA)=3:1，w(SS)=20%(占单体总质量,下同)，w(引发剂)=12%，聚合温度85 oC，聚合时间4 h，此时得到的产品黏均分子量为1176.3。对ESA/IA/SS的阻垢分散性能进行了测定，并与ESA/SS和聚环氧琥珀酸（PESA）进行了比较。实验结果表明：ESA/IA/SS与PESA的阻碳酸钙性能相当，当加药量为50 mg/L时，PESA的阻垢率为72.3%，ESA/IA/SS的阻垢率为71.5%，比ESA/SS高27.3%。ESA/IA/SS的阻磷酸钙性能远高于PESA，当加药量为40 mg/L时，PESA的阻垢率仅为7.0%，ESA/IA/SS的阻垢率为96.8%。同时，ESA/IA/SS还具有一定的分散氧化铁性能，加药后FeCl3溶液的透光率为72.6%。

Research on Synthesis and Properties of Polyepoxysuccinic Acid Derivative Containing Sulfonate Group

A terpolymer ESA/IA/SS was synthesized by copolymerization using epoxysuccinic acid (ESA), itaconic acid (IA) and sodium p-styrenesulfonate (SS) as monomers and ammonium persulfate as initiator. The structure of product was determined by IR. In addition, the effects of mass radio of MA and IA, initiator amount, reaction temperature and reaction time on the properties of the polymer. And The optimal synthesis conditions was obtained. when the m(MA):m(IA)=3:1, the amount of SS and initiator accounted for 20% and 12% of the total monomers mass respectively, the reaction temperature was 85 oC and the reaction time was 4 h, the viscosity average molecular weight of the product was 1176.3. The properties of scale inhibition and dispersion of ESA/IA/SS were studied and compared with those of ESA/SS and PESA. The results showed that the property of inhibition to CaCO3 scale of ESA/IA/SS was similar to that of PESA. When the dosage was 50 mg/L, the scale inhibition rate of PESA was 72.3%, and that of ESA/IA/SS was 71.5%, which was 27.3% higher than that of ESA/SS. For the property of inhibition Ca3(PO4)2 scale, ESA/IA/SS was much higher than PESA. When the dosage was 40 mg/L, the rate of scale inhibition of PESA was only 7.0%, while that of ESA/IA/SS was 98.6%. Beside, ESA/IA/SS had a certain property of dispersing Fe2O3, the light transmittance of the FeCl3 solution with ESA/IA/SS kept at 72.6%.