a covalent bond that links two chains of atoms, or two sections of one chain, in a polymeric molecule; the cross-link is created by a third bond in a monomer unit in addition to the two bonds forming the polymeric chain; -- a cross-link may be internal to a single chain, rather than between two otherwise unlinked chains; as, ultraviolet irradiation creates cross-links between the two chains of a DNA double helix; many enzymes have cross-links formed by disulfide bonds; polystyrene resins have their porosity controlled by the proportion of cross-links. Called also cross-linkage.
to create cross links in; -- of polymeric molecules.
(r) chemical bond bridging one polymer chain to another.
a side bond that links two adjacent chains of atoms in a complex molecule
join by creating covalent bonds (of adjacent chains of a polymer or protein)
An undesirable bond between molecules that is induced by free radicals and results in deformed molecules that cannot function properly.
A chemical bridge formed between modular chains increasing their strength and heat resistance.
The process by which polymers become interlinked to form a solid, three-dimensional matrix. Chemical bonds are formed between neighbouring molecules of the polymer(s) present, by allowing them into contact by evaporation of solvent; or by heating; or by chemical reaction using a cross-linking agent.
Tying together large molecules and hence changing the physical properties of material. Cross-linking usually involves formation of three dimensional molecular network and is customarily associated with thermosetting resins.
Cross-links are covalent bonds linking one polymer chain to another. They are the characteristic property of thermosetting plastic materials. In biology, cross-linking has applications in forming polyacrylamide gels for gel electrophoresis and in protein studies.
