https://doi.org/10.1351/goldbook.C00982
The ratio of the mean-square end-to-end distance, , of a , where is the number of rigid sections in the main chain, each of length ; if all of the rigid sections are not of equal length, the mean-square value of is used, i.e. In simple single-strand chains, the bonds are taken as the rigid sections. The recommended symbol is: ( when ).
linear polymer
chain in a theta state to