CARBOXY-FUNCTIONALIZED POLYPHENYLENE ETHERS AND BLENDS CONTAINING THEM.

摘要

CARBOXY-FUNCTIONALIZED POLYPHENYLENE ETHERS CONTAINING STRUCTURAL UNITS WITH A CARBOXYALKYL GROUP IN THE 2-POSITION ARE PREPARED BY REDISTRIBUTION OF A POLYPHENYLENE ETHER WITH A 2-CARBOXYALKYLPHENOL SUCH AS 2-(3-CARBOXYPROPYL) PHENOL (MELILOTIC ACID), OR BY OXIDATIVE COUPLING OF A SUITABLE PHENOL WITH SUCH A 2-CARBOXYALKYLPHENOL. THE PRODUCTS FORM COMPATIBILIZING COPOLYMERS WITH POLYMERS CONTAINING CARBOXYLIC ACID-REACTIVE FUNCTIONAL GROUPS, SUCH AS POLYESTERS,POLYAMIDES AND EPOXY RESINS.