Method for preparing reactive triazine-capped aromatic polymers, and intermediates for use therein
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United States of America Patent
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Nov 23, 1993
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N/A
app pub date -
Sep 8, 1992
filing date -
Jul 5, 1991
priority date (Note) -
Expired
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Abstract
Hydroxy group-containing polymers, particularly polyphenylene ethers, are capped by reaction with a chlorotriazine in the presence of a substantially inert organic liquid such as toluene, water, a phase transfer catalyst and a tertiary amine from a specific class, preferably a trialkylamine such as triethylamine or dimethyl-n-butylamine. The reaction proceeds rapidly and in good yield.
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