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Anionic polymerization of optically active oxiranes

✍ Scribed by Howard Haubenstock; Wei-Hong Yu; George Odian

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
219 KB
Volume
16
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

The anionic bulk polymerization of optically active (2__R__, 3__S__)‐3,4‐epoxy‐1,2‐O‐isopropylidenebutane‐1,2‐diol (1) and its (2 S, 3 S) diastereomer 2 was studied. Molecular weights and optical activity measurements as well as carbon and proton NMR spectra are reported. The polymers show solvent dependent inversion of the sign of optical rotation. The NMR spectra are consistent with isotactic polymer chains.

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