Abstract This document summarizes and extends definitions and notations for the description of tactic polymers and the diad structures of which they are composed. It formally recognizes and resolves apparent inconsistencies between terminology used in the polymer field to describe tactic polymers and terminology in more common use in organic chemistry. Specifically, the terms m and r diads are recommended to replace the terms meso and racemo diads. The definitions are also updated from those in the existing Stereochemistry Document to use the term ‘stereogenic centre’, rather than ‘chiral or prochiral atoms’. Further, the terms relating to tacticity have been defined for the constituent macromolecules, rather than for the polymers composed of those macromolecules. Therefore, this document also forms an addendum and corrigendum to the 1981 document, ‘Stereochemical definitions and notations relating to polymers’.

中文翻译：

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与战术聚合物相关的定义和符号（IUPAC 建议 2020）

摘要 本文件总结并扩展了对规整聚合物及其组成的二单元结构的描述的定义和符号。它正式承认并解决了聚合物领域中用于描述策略聚合物的术语与有机化学中更常用的术语之间的明显不一致。具体而言，建议使用术语 m 和 r diads 替换术语 meso 和racemo diads。这些定义也从现有立体化学文件中的定义更新为使用术语“立体中心”，而不是“手性或前手性原子”。此外，与立构规整度相关的术语是为组成大分子而不是由这些大分子组成的聚合物定义的。因此，本文件也构成了 1981 年文件的增编和更正，