Because there are more links between surfaces, increasing crosslinking and crystallinity enhance resistance. Since crosslinking uses covalent bonds, it is the more efficient of the two.
Crystallinity rises with crosslinking, improving resistance to swelling. Atoms or molecules of the solute seep into the regions between the polymer chains. As a result, amorphous regions are more likely than crystalline parts to experience this process. A polymer's resistance to swelling is improved by increasing crystallinity since there is more intermolecular interaction between chains. Due to the comparatively strong covalent crosslinks created by increased crosslinking, interchain displacement is more resistant, which reduces swelling.
learn more about crystallinity here:
https://brainly.com/question/14977689
#SPJ4
