The reversible network formed by crosslinking between macromolecule chains through physical interaction can be dissolved in solvent, heated and melted. The process of macromolecule material changing from sol to gel (also called jelly) is also called gelation. Gel is a special dispersion system, in which macromolecule molecular colloidal particles are interconnected to form a spatial network structure. Appropriate concentration of coagulant can be used to form gel, and the gelled particles have a certain degree of desolvation, so that the solute can form a certain network structure to replace the irregular gel.
Organic polymer materials -> Polymer Science -> Polymer Physics