Manufacture of colorless high molecular polyphenylene ethers
Abstract
Abstract A THERMOSTABLE POLYPHENYLENE ETHER IS OBTAINED BY OXIDATIVE COUPLING OF A TRISUBSTITUTED PHENOL AND TREATMENT OF THE POLYMERIC PRODUCT WITH A THIOL. POLYPHENYLENE ETHERS OBTAINED BY THE OXIDATIVE COUPLING OF TRISUBSTITUTED PHENOLS IN THE PRESENCE OF OXYGEN, AN ORGANIC SOLVENT AND A COPPER/AMINE COMPLEX ARE ACTED UPON AT TEMPERATURE BETWEEN 10* AND 100*C. FOR AT LEAST 5 SECONDS BY A THIOL OF THE GENERAL FORMULA HSR2 WHERE R2 STANDS FOR A LINEAR, BRANCHED OR CYCLIC ALKYL RADICAL HAVING FROM 2 TO 20 CARBONS ATOMS, -CH2-CH2-OH, -CH2-CH(-OH)-CH3, -CH2-CH(-C6H5)-OH, -CO-C6H5, -CH2-COOH, (4-HO-PHENYL)-, (4-(CH3-O-)PHENYL) , -(CH2)-NH2, OR (4-NH2-PHENYL)- THESE HIGH MOLECULAR WEIGHT POLYPHENYLENE ETHERS ARE SUITABLE FOR THE PRODUCTION OF THERMOSTABLE PLASTICS AND COATINGS.
Inventors
- 👤 Herbert Naarmann
- 👤 Herbert Willersinn
Bibliographic Details
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