Examples include poly(carbasilane)s, poly(phenylenesilanediyl)s, poly(phenylenesulfide)s,
etc.
Source:
PAC, 2007, 79, 1801
(Definitions of terms relating to the structure and processing of sols, gels, networks,
and inorganic-organic hybrid materials (IUPAC Recommendations 2007))
on page 1812