In polymer science, the backbone chain or main chain of a polymer is the series of covalently bonded atoms that together create the continuous chain of the molecule.
In polypeptides, the backbone consists of carbon and nitrogen atoms of the constituent amino acids. The backbone does not include the side chains.
Famous quotes containing the word chain:
“It is the future that creates his present.
All is an interminable chain of longing.”
—Robert Frost (1874–1963)