Increasing the number of carboxyl group or ester branched chain, as well as inserting nitrogen or oxygen element into the backbone of the molecules of polycarboxylates could improve their biodegradability, and the latter was especially effective.

• 研究结果表明 ,增加聚羧酸阻垢剂分子结构中羧基的数目、酯基支链以及向主链中插入氮、氧元素 ,均可提高其可生物降解性 ,后两种方法特别有效。