水杨酸、甲醛和烷基伯胺(烷基:甲基,正-丙基,正-己基或正-十二烷基)通过Mannich缩合反应制得了主链上既含有水杨酸基又含有叔胺基的线型缩聚物。用这些缩聚物催化P-硝基苯酚乙酸酯(PNPA)水解反应的动力学研究结果表明,缩聚物的催化活性随N-烷基侧链的链长增加而增加。在催化剂过量的条件下,带有十二碳烷基侧链的缩聚物催化PNPA水解反应时符合简单的Michaelis-Menten动力学历程。 Salicylic acid, formaldehyde and primary alkyl amines (alkyl group: methyl, n-propyl, n-hexyl or n-dodecyl) were subjected to Mannich condensation reaction to obtain Tertiary amine linear polycondensates. Kinetic studies on the hydrolysis of p-nitrophenol acetate (PNPA) catalyzed by these polycondensates show that the catalytic activity of the polycondensates increases with increasing chain length of the N-alkyl side chain. In the presence of a catalyst excess, the polycondensate with the dodecyl alkyl side chains catalyzed the PNPA hydrolysis reaction to follow the simple Michaelis-Menten kinetics.