Swelling in athermal solvents

The end-to-end distance of a network strand in the preparation state at initial concentration 0o in an athermal solvent is given by Eq. (5.26) 

As shown in Section 5.3.1, the size of semidilute polymer chains in an athermal solvent decreases weakly with concentration as 7 since 

In contrast, the Flory form [Eq. (7.69)] underestimates the fluctuation size by assuming that R ef is the ideal size bN.  

The gel modulus in an athermal solvent has a stronger concentration dependence than in a -solvent  

The osmotic pressure in an athermal solvent was considered in Section 5.3.2 [Eq. (5.48) with v 5iZ ]  

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