Term: rigid chain
https://doi.org/10.1351/goldbook.RT06871

Definition:
The rod-like chain of an MCPLC (main-chain polymer liquid crystal) with direct links between the mesogenic groups for which the persistence length is at least comparable with the contour length and much greater than the diameter.

Related Terms:
1) main-chain polymer liquid crystal (http://doi.org/10.1351/goldbook.MT06869).
2) mesogenic groups (http://doi.org/10.1351/goldbook.MT06858).

Source: PAC, 2002, 74, 493. 'Definitions of basic terms relating to polymer liquid crystals (IUPAC Recommendations 2001)' on page 505 (https://doi.org/10.1351/pac200274030493)

Citation: 'rigid chain' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.RT06871

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