부산대학교 도서관

Living polymerization of chiral aryl isocyanides with t-butyl groups at an ortho-position was initiated by an organorhodium complex to give polyisocyanides with a narrow polydispersity index in quantitative yields. The intense Cotton effect at approximately 350 nm in the CD spectra and a larger absolute value of optical rotation with an opposite sign relative to that of the monomer suggested that the resulting polymers maintained single-handed helical structures predominantly. The selectivity of helical sense depended on the structure of the chiral substituents such as the bulkiness and the position of stereogenic center.