Here 𝑁 is the number of Kuhn segments, 𝜐 is the Flory exponent and 𝐿 is the polymer contour length. For polybutadiene, (1,2 addition), the Kuhn length is 13.7 Å, while for poly ethylene oxide, the Kuhn length is 8 Å. Under the assumption that the polymers are acting as ideal chains (similar to their configuration in a polymer melt) that do collapse and fully interdigitate, the Flory exponent is given by 𝜐 = 0.5, leading to a bilayer thickness of 95 Å and hydrophobic core thickness of 55 Å for PBd22-PEO14 membranes. However, this random walk model has to be used with great care as it is most accurate for the statistics of longer polymers, where the number of Kuhn segments, 𝑁, is much larger.