Warning (2): get_headers(): https:// wrapper is disabled in the server configuration by allow_url_fopen=0 [APP/Controller/TermsController.php, line 315]
Warning (2): get_headers() [<a href='http://php.net/function.get-headers'>function.get-headers</a>]: This function may only be used against URLs [APP/Controller/TermsController.php, line 315]
IUPAC - persistence length (P04515)

persistence length

in polymers
https://doi.org/10.1351/goldbook.P04515
The average projection of the end-to-end vector on the tangent to the chain contour at a chain end in the limit of infinite @C00956@. The persistence length (symbol a) is the basic characteristic of the @W06692@.
Source:
Purple Book, 1st ed., p. 51 [Terms] [Book]