发明授权
US5093464A Wholly aromatic polyamide from N,N'-bis (4-amino phenyl)-isophthalamide 失效
来自N,N'-双(4-氨基苯基) - 间苯二酰胺的全芳族聚酰胺

Wholly aromatic polyamide from N,N'-bis (4-amino phenyl)-isophthalamide
摘要:
New wholly aromatic polyamides are provided. This polymers are prepared by a mixture of N,N'-bis(4-aminophenyl)-isophthalamide and p-phenylenediamine in a tertiary amide solvent containing an alkali metal salt such as LiCl and a tertiary amine as an acid acceptor. The polymers are easily dry-jet spun to form a fiber and cast to form a film. The fiber and film so obtained have ultrahigh tenacity, elasticity and elongation.
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