Acyl capped quinone-coupled polyphenylene oxides
First Claim
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1. An acyl capped quinone-coupled polyphenylene oxide of the formula:
- ##STR5## wherein independently each --OEO-- is a divalent quinone residue, E is a divalent arene radical, either a or b is at least equal to 1, R'"'"' is hydrogen, a hydrocarbon radical, a halohydrocarbon radical having at least 2 carbon atoms between the halogen atoms and phenol nucleus, a hydrocarbonoxy radical, or a halohydrocarbonoxy radical having at least two carbon atoms between the halogen atoms and phenol nucleus, R" being the same as R'"'"' and, in addition, halogen, and R is an alkyl, cycloalkyl or aryl radical.
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Abstract
New polymers comprising acyl capped quinone-coupled polyphenylene oxides are described. The resulting new polymers have improved color and in combination with styrene resins provide thermoplastic compositions having improved chemical and physical properties.
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Citations
12 Claims
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1. An acyl capped quinone-coupled polyphenylene oxide of the formula:
- ##STR5## wherein independently each --OEO-- is a divalent quinone residue, E is a divalent arene radical, either a or b is at least equal to 1, R'"'"' is hydrogen, a hydrocarbon radical, a halohydrocarbon radical having at least 2 carbon atoms between the halogen atoms and phenol nucleus, a hydrocarbonoxy radical, or a halohydrocarbonoxy radical having at least two carbon atoms between the halogen atoms and phenol nucleus, R" being the same as R'"'"' and, in addition, halogen, and R is an alkyl, cycloalkyl or aryl radical.
- View Dependent Claims (2, 3, 4, 5, 6)
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7. A process for capping quinone-coupled polyphenylene oxides which comprises contacting quinone-coupled polyphenylene oxides with a capping agent selected from the class consisting of monoacyl halides, monosulfonyl halides, anhydrides of monocarboxylic acids, alkyl halides, or dialkylsulfates, wherein said contacting is carried out at a temperature within the range of from about 0°
- -150°
C. in the presence of a water soluble base and a catalytic phase transfer agent. - View Dependent Claims (8, 9, 10, 11, 12)
- -150°
Specification