Chiroptical inversion induced by sandwiching units in chiral polythiourethane |
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Authors: | Nagai Atsushi Ochiai Bungo Endo Takeshi |
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Institution: | Department of Polymer Science and Engineering, Faculty of Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan. |
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Abstract: | 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. |
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