As a kind of green scale inhibitor,polyaspartic acid derivative is synthesized by using L-aspartic acid and triethanolamine in acid-catalyzing.

• 采用磷酸作催化剂,以L-天冬氨酸热聚合,再与三乙醇胺化合的方法合成了一种不含磷的环保型阻垢剂聚天冬氨酸衍生物。