Polycondensation is a step-growth polymerization process in which monomers react to form polymers with the loss of a small molecule, such as water or methanol. The monomers typically have two or more functional groups that can react with each other. Polycondensation is a common method for synthesizing polymers like polyesters, polyamides, and polycarbonates.

聚缩合是一种逐步增长聚合过程，其中单体反应形成聚合物，并损失一个小分子，例如水或甲醇。单体通常具有两个或多个可以相互反应的官能团。聚缩合是合成聚酯、聚酰胺和聚碳酸酯等聚合物的常用方法。