IPA: /ˌaɪsəʊˈtæktɪk/
KK: /ˈaɪsəʊˌtæktɪk/
Describing a type of polymer structure where the side groups are arranged in a regular pattern, rather than randomly, in each repeating unit.
The isotactic polymer has a uniform structure that enhances its strength and stability.
Isotactic → It is formed from "iso-" (meaning equal or same) and "tactic" (from Greek "taktikos", meaning relating to arrangement). The word "isotactic" refers to a type of polymer structure where the repeating units are arranged in a regular, uniform manner, hence equal in arrangement.
Think of 'iso-' meaning 'equal' and 'tactic' relating to 'arrangement' — this helps you remember that isotactic refers to a uniform arrangement.