Daicel Chemical Industries, Ltd.

Shinsuke Suzuki

Atsushi Onishi

Kazumi Suzuki

Hiroki Taniguchi

Toru Ozaki

Atsushi Ohnishi

Michiyo Nakai

Hirofumi Sasai

Masato Sakai

The present invention is to provide a method of producing a separating agent for an enantiomeric isomer having a high optical resolution power together with sufficient solvent resistance. That is, a method of producing a separating agent for an enantiomeric isomer comprising the steps of allowing the porous carrier to carry the optically active polymer compound by bringing the porous carrier into contact with a dope of the optically active polymer compound and exposing a product to radiation.

Separating agent for an enantiomeric isomer

Separating agent for an optical enantiomeric isomer

Cellulose acetates and process for producing the cellulose acetates

A separating agent for enantiomeric isomers has an enantiomerically active polymer compound supported thereon. The polymer compound has an exothermic peak before a decomposition temperature of the polymer compound supported is reached in a differential calorimetric curve obtained in a process of temperature elevation in differential scanning calorimetry (DSC) on the separating agent. Also, disclosed is a method of evaluating asymmetry recognition ability of a separating agent for enantiomeric isomers. The method includes performing the differential scanning calorimetry (DSC) of a separating agent for enantiomeric isomers having supported thereon an enantiomerically active polymer compound to obtain a differential calorimetric curve in a process of temperature elevation therein, and observing presence or absence of an exothermic peak of the polymer compound in the differential calorimetric curve before a decomposition temperature of the supported polymer compound is reached. The evaluation method provides a simpler method for the evaluation of asymmetry recognition ability and thus provides a separating agent for enantiomeric isomers having higher ability of recognizing asymmetry.

Separating agent for enantiomeric isomers

Growing community of inventors

Himeji, Japan

Shinsuke Suzuki