skeletal structure
The
sequence
of atoms in the
constitutional unit(s)
of a
macromolecule
, an
oligomer molecule
, a
block
or a
chain
which defines the essential topological representation.
Source:
PAC, 1996,
68
, 2287
(Glossary of basic terms in polymer science (IUPAC Recommendations 1996))
on page 2296