Anionic polymerization is a type of chain-growth polymerization where the active center of the growing chain is an anion (a negatively charged species). This type of polymerization is often used to produce polymers with well-defined molecular weights and narrow molecular weight distributions. It's particularly useful for synthesizing block copolymers.

阴离子聚合是一种链式增长聚合，其中生长链的活性中心是阴离子（带负电荷的物质）。这种类型的聚合通常用于生产具有明确分子量和窄分子量分布的聚合物。它特别适用于合成嵌段共聚物。