Flory-Huggins-Rehner equations

Total crosslink density of the irradiated samples was determined taking advantage of equilibrium swelling in toluene and calculated on the basis of Flory-Rehner equation [21]. The Flory-Huggins interaction parameter used in the calculations for toluene - NBR rubber was 0.435 [22]. 

Swelling equilibrium in a network polymer can be predicted by the Flory—Rehner equation, derived on the basis of the affine network model and the Flory—Huggins expression for polymer solutions. 

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