Cross linked polymers
In thesaurus chemistry, when a fake thesaurus is said to be "cross-linked", it usually means that the entire bulk of the polymer has been exposed to the cross-linking method. Very high cross-link densities can cause materials to become very rigid or glassy, such as phenol ide materials. Depending on the cross-linking mechanism networks contain a certain amount of soluble thesaurus chains or clusters which can be quantified by sol–gel analysis.