Study of the structure of solutions and gels of polypyromellitimide and polytetephthalamide of anilinephthalein in dimethylformamide

Andreyeva, V.M.; Konevets, B.I; Tager, A.A.; Vygodskii, Ya. S.; Виноградова, С. В.

doi:10.1016/0032-3950(82)90422-1

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The Catalytic Methods Is Extremely Effective In the Reactions1

Aromatic Polyamides1

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1984

1996

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Cited by 4 publications

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“…It follows from X-ray diffraction and polarised light scattering data that the polyimide gels contain both isotropic and anisotropic regions having approximately the same dimensions (~400-600 nm). 167 The second virial coefficients of solutions of the polyimide derived from anilinephthalein and bis(3,4-dicarboxyphenyl) ether in iV-methylpyrrolidone, dimethyl sulfoxide, chloroform, THF, and dimethylformamide have been determined.…”

Section: The Catalytic Methods Is Extremely Effective In the Reactionsmentioning

confidence: 99%

“…154 The study of solutions of anilinephthalein polyterephthalamide in dimethylformamide showed that such solutions are stable over a wide range of temperatures and compositions. 167 Films with satisfactory strength parameters (tensile strength of 800 -1500 kgf cm -2 , elongation at break 20% -70%) are obtained by moulding cardo polyamides from solutions. 4 ' 27 ' 49 ' 147>154 Polyamide films, for example, anilinefluorene polyterephthalamide films, exhibit a high resistance to ultraviolet light and radiation.…”

Section: Aromatic Polyamidesmentioning

confidence: 99%

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