Mandarin:
活性阴离子聚合 (huó xìng yīn lí zǐ jù hé)

Explanation in English Language (EN):
Living anionic polymerization is a special type of anionic polymerization where the growing polymer chains do not undergo termination reactions. This means that the chains remain active even after all the monomers have been consumed. Living anionic polymerization allows for precise control over molecular weight, molecular weight distribution, and polymer architecture. It is often used to synthesize block copolymers, end-functionalized polymers, and other well-defined polymer structures.

Explanation in Mandarin (ZH):
活性阴离子聚合是一种特殊类型的阴离子聚合，其中不断增长的聚合物链不会发生终止反应。这意味着即使所有单体都被消耗掉，这些链仍然保持活性。活性阴离子聚合可以精确控制分子量、分子量分布和聚合物结构。它通常用于合成嵌段共聚物、端基官能化聚合物和其他定义明确的聚合物结构。

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International Phonetic Alphabet (IPA)
- Definition: A standardized system of symbols used to represent the sounds of spoken language.
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