Crosslinked magnetic polymers and methods for preparation thereof
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United States of America Patent
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Aug 23, 1994
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N/A
app pub date -
May 4, 1993
filing date -
Apr 10, 1992
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Abstract
A crosslinked polymer composition having intense magnetic properties and a method for preparation of same. A phthalimide compound and an aromatic dialiphatic acid are reacted in the presence of an acetate of a monovalent metal at elevated temperatures to form a phenylenebis diphthalimidine compound. The phenylenebis diphthalimidine compound is then reacted with a metal salt of an aliphatic acid at elevated temperatures under an inert gas to form the intensely magnetic crosslinked polymer. The reactions may be carried out in the presence of a solvent.
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