Patent ID: 6268463
Filing Date: 2001-07-31
Classification: C08G,C08L

Abstract:
A method for preparing a functionalized polyphenylene ether comprising structural units of the formulas ##STR2##wherein each Q.sup.1 is independently halogen, primary or secondary lower alkyl, phenyl, haloalkyl, aminoalkyl, hydrocarbonoxy, or halohydrocarbonoxy wherein at least two carbon atoms separate the halogen and oxygen atoms; each Q.sup.2 and Q.sup.3 is independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, haloalkyl, hydrocarbonoxy or halohydrocarbonoxy as defined for Q.sup.1 ; and R is an alkylene radical containing at least 1 carbon atom, which comprises oxidatively coupling at least one monohydroxyaromatic compound with a 2-carboxyalkylphenol.