Figure 8.

Hemiaminal substituent effects on resulting polymer helical excess measured through CD. Polymerization was carried out at 23 °C under optimized conditions ([NVC] = 0.12 M, [(S,R)-Sc] = 1.2 mM, [hemiaminal] = 1.2 mM) with a 5 min pre-mix between the initiator and the catalyst, then a 10 min polymerization time and subsequent quenching with n-BuLi (0.1 M) solution. ^aUnits for molar ellipticity are deg cm² dmol⁻¹.