homochain polymer

A class of polymer in which the main chain is constructed from atoms of a single element. Homochain polymers are named by placing the name or symbol of the element in the main chain immediately before the expression '-chain polymer', e.g. carbon-chain polymer or C-chain polymer; sulfur-chain polymer or S-chain polymer.
Purple Book, 1st ed., p. 146 (http://old.iupac.org/publications/books/author/metanomski.html)