METHOD FOR IMMEDIATELY TERMINATING RADICAL POLYMERIZATIONS, INHIBITOR SOLUTION, AND USE THEREOF

摘要

The invention relates to a method for immediately terminating radical polymerizations by adding an inhibitor solution containing a phenothiazine compound and/or a monoalkyl ether of hydroquinone to the radical polymerizing system. The method is characterized in that the solvent of the inhibitor solution contains at least 50 wt% of alkylene glycol and/or polyalkylene glycol and/or terminally etherified derivatives of alkylene glycol and/or of polyalkylene glycol with respect to the weight of said solvent. The invention further relates to inhibitor solutions that contain a phenothiazine compound and/or a monoalkyl ether of hydroquinone and, as a solvent, alkylene glycol and/or polyalkylene glycol and/or terminally etherified derivatives of said compounds. The method permits the use of nontoxic inhibitor solutions.