ladder chain
A @[email protected], consisting of an uninterrupted @[email protected] of rings, with adjacent rings having two or more atoms in common. Alternatively, a ladder chain is a double-strand chain with adjacent @[email protected] joined to each other through four atoms, two on one side and two on the other side of each @[email protected]
PAC, 1996, 68, 2287. (Glossary of basic terms in polymer science (IUPAC Recommendations 1996)) on page 2295 [Terms] [Paper]