以马来酸酐为原料制备聚天冬氨酸,并对聚合反应的质量配比、聚合温度和聚合时间三个反应条件进行了优化实验,对最优条件下合成的PASP与其它阻垢剂进行了性能对比。结果表明:合成PASP的最佳条件是:原料质量配比为1∶1.1,聚合温度为160℃,聚合时间为1h,阻垢率可以达到95%以上,生物降解性能达到70%。 Poly (aspartic acid) was prepared from maleic anhydride, and the optimal reaction conditions were optimized, such as mass ratio, polymerization temperature and polymerization time. The optimum conditions for the synthesis of PASP and other scale inhibitors Performance comparison. The results showed that the optimal conditions for the synthesis of PASP were as follows: the mass ratio of raw materials was 1: 1.1; the polymerization temperature was 160 ℃; the polymerization time was 1h; the scale inhibition rate could reach over 95%; and the biodegradation performance reached 70%.