CD spectroscopy is one of the few spectroscopic techniques that is applied to analyse the secondary structure of biopolymers and synthetic polymers. In 1992, Oh et al. carried out a molecular mechanics calculations for pMeMeOx with DP=20 and a corresponding tetramer. The calculated structures were defined by a left-handed helices containing 14 residues/3 turns with an identity period of 17.8 Å. Since, several kinds of chiral POx have been shown to form a secondary structures in solution, including p R EtEtOx. This flexible secondary structure is akin to the better-known polyproline type II helix.