Imide-free and mixed amide/imide thermal synthesis of polyaspartate
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United States of America Patent
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Nov 9, 1999
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N/A
app pub date -
Apr 23, 1997
filing date -
Apr 23, 1997
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Abstract
Thermal polymerization of a salt of aspartic acid affords polyaspartate directly without hydrolyzing polysuccinimide. Copolymerization of a salt of aspartic acid with aspartic acid itself affords a copolymer of succinimide and aspartate which may be readily derivatized to produce a sulfonated, phosphonated or hydrophobized polymer.
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