NEW MACROAZO-INITIATOR FOR THE SYNTHESIS OF POLYMERS WITH CROWN ETHER UNITS.

In this article, we report the synthesis of a polyamid from trans-4,4 prime -diaminodi-benzo-18-crown-6, a new macroazo-initiator having appropriate functionality for subsequent vinyl polymerization. The polyamid, is a useful initiator for free-radical polymerizations, yields polymeric products having one or two crown ether groups in accord with the normal kinetic behavior of the particular monomers involved. Although the results are preliminary in nature, they serve to indicate the efficiency and convenience of using macroazo-initiator to introduce crown ether units into the polymer backbone. Such processes would have considerable value in purification of liquids and in ion exchange technology.