Aromatic polyamides containing cyclic groups in the side chain

Khar'kov, S. N.; Grechushnikova, L.P.; Chegolya, A. S.; Krasnov, Ye.P.; Preobrazhenskii, K.K.; Gribov, R. N.; Vorob'ev, Ye.A.

doi:10.1016/0032-3950(72)90090-1

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…The solvents were dried by distillation over desiccants. 4,4′-(9-Fluorenylidene) dianiline was prepared by the condensation of aniline and 9fluorenone as described [18].…”

Section: Methodsmentioning

confidence: 99%

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Topology and structure analysis of carbon fiber-reinforced polyimide composites

2023

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This paper describes the production of carbon fiber / high-performance polyimide prepregs and the study of prepreg samples quality by scanning electron microscopy, atomic-force electron microscopy and scanning ion-conductance microscopy. The prepreg samples were produced using a laboratory-designed setup by impregnation of carbon fiber with a polyimide solution. The study of the prepreg structure made it possible to establish the connection between polymer matrix composition and quality of carbon fiber impregnation. Thus, the study shows that the polymer matrix composition containing aliphatic fragment and quaternary carbon atom produces the best performance prepreg suitable for FDM 3D printing.

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“…The solvents were dried by distillation over desiccants. 4,4′-(9-Fluorenylidene) dianiline was prepared by the condensation of aniline and 9fluorenone as described [18].…”

Section: Methodsmentioning

confidence: 99%

“…Polyimide binder 3 (PI-3) was synthesized by one-pot high-temperature synthesis on the basis of 3,5-diaminobenzoic acid, 4,4′-(9-fluorenylidene) dianiline, and 4,4′-oxydiphthalic anhydride similarly as described [18,20].…”

Section: Methodsmentioning

confidence: 99%