Figure 6

(a) Plots of the helix content θ, the mean helix length ζ, the number of helical segments on a chain υ and the probability of a monomer in coiled conformation t as a function of the association constant λ of κ-car double helices. A degree of polymerization of n = 572 and a volume fraction of ϕ = 0.0113 are used for calculation. ζ and υ have been normalized by n. (b) Helix content θ fitted to the experimental values obtained from DSC (open circles) for κ-car in KCl and Me4NI, according to the equation lnλ(T)=ΔS/R−ΔH/RT. ΔH and ΔS are the enthalpy and entropy for the formation of κ-car double helices.