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US5981691A Imide-free and mixed amide/imide thermal synthesis of polyaspartate 失效
聚天冬氨酸的无酰胺和混合酰胺/酰亚胺热合成

Imide-free and mixed amide/imide thermal synthesis of polyaspartate
摘要:
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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