3.1.3. Effective Cross-Link Density of a Cross-Linked Structure

The analysis of the effective cross-link density of a cross-linked structure revealed that five hydrogels exceeded the value of 6.0 × <sup>10</sup>−<sup>4</sup> mol cm−3: Hy04 > Hy05 > Hy10 > Hy09 > Hy01 (see Table 3). Except Hy12 and Hy06 all hydrogels contained CNF. The ν<sup>e</sup> values were higher when 2% w w−<sup>1</sup> CNF was added to the mixture.
