Spiro(1,1-polyethylenedi(oxymethyl))-3-oxetanes
Abstract
Abstract DESCRIBED ARE MACROCYCLIC POLYETHERS AND THIOETHERS HAVING ONE OR TWO SPIRO-OXETANE RINGS. THE COMPOUNDS ARE PREPARED BY REACTION OF 3,3-BIS(CHLOROMETHYL)OXETANE WITH POLYETHYLENE GLYCOL OR LIKE COMPOUNDS IN WHICH ALL OR PART OF THE OXYGEN IS REPLACED WITH SULFUR. THE REACTION IS CONDUCTED IN A SUITABLE INERT SOLVENT. THE COMPOUNDS CAN BE POLYMERIZED BY OPENING OF THE OXETANE RING WITH CATIONIC INITIATORS. THE COMPOUNDS AND POLYMERS CAN BE EMPLOYED TO EXTRACT METALS AND PARTICULARLY ALKALI OR ALKALINE EARTH METAL SALTS FROM WATER AND ARE THUS USEFUL IN VARIOUS WATER-TREATMENT PROCEDURES. VALUABLE HEAVY METALS CAN ALSO BE EXTRACTED, PARTICULARLY WITH THE SULFURCONTAINING COMPOUNDS AND THEIR POLYMERS.
Inventors
- 👤 C Krespan
Bibliographic Details
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