Chiroptical inversion induced by sandwiching units in chiral polythiourethane.
Chiroptical behavior of a hydrogen-bond-regulated chiral polythiourethane segment was inversed by sandwiching sterically demanding segments in copolymers prepared by cationic ring-opening copolymerization of chiral cyclic thiourethanes derived from L-serine.
Department of Polymer Science and Engineering, Faculty of Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan.
Atsushi
A
Nagai
Bungo
B
Ochiai
Takeshi
T
Endo