Figure 4. Effective sub-chain density (moles of effective sub-chains per unit volume) as a function of decomposed dicumyl peroxide or added cross-linking.

Lines from data summarized by Wood [12]

$2X/A_1{V}_r-2/M{\overline{v}}_r=66.80fp-30.1$

(G − G*)/RT = 71.26 fp − 32.1

ψ(v₂) = 82.70 fp + 14.0

G/RT = 74.02 fp + 75.4

Flory-Rehner equation

ψ(v₂) = [− ln(1 − v₂) − v₂ − μv₂²][V₁⁻¹][v₂^1/3 − v₂/2]⁻¹

Experimental points from data of Mullins [28].