semi-rigid chain

https://doi.org/10.1351/goldbook.ST06872
A chain for which the contour length is greater than the persistence length but for which their ratio is still below the Gaussian limit.
Source:
PAC, 2002, 74, 493. (Definitions of basic terms relating to polymer liquid crystals (IUPAC Recommendations 2001)) on page 505 [Terms] [Paper]