| 摘要 |
<P>PROBLEM TO BE SOLVED: To remove a reaction solvent and side products from a water-insoluble cyclodextrin-condensation polymer. <P>SOLUTION: A polymer is obtained by condensing cyclodextrins and an organic dibasic acid or a halogenated organic dibasic acid; and then a cyclodextrin-condensation polymer is obtained by reacting the terminal of the polymer with alcohols, aryl alcohols or phenols. The method of cleaning the cyclodextrin-condensation polymer includes: a step (1) of accumulating the obtained cyclodextrin-condensation polymer in an infundibulum for suction filtration; a step (2) of adding an alcohols/water-mixed solvent to the accumulated cyclodextrin-condensation polymer and thereafter suctioning the resultant condensation polymer; a step (3) of adding acetone to the condensation polymer left on the infundibulum; a step (4) of repeating the steps of (2) and (3) at least twice or more. <P>COPYRIGHT: (C)2012,JPO&INPIT |
