The synthesis and properties of fluorine containing polyamides (PA)

Malichenko, B.F.; Tsypina, O.N.; Chervyatsova, L.L.; Kachan, A.A.

doi:10.1016/0032-3950(74)90276-7

Polymer Science U.S.S.R.

1974

DOI: 10.1016/0032-3950(74)90276-7

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The synthesis and properties of fluorine containing polyamides (PA)

B.F. Malichenko

O.N. Tsypina

L.L. Chervyatsova

et al.

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1976

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Cited by 3 publications

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Condensation polymerization of 2,2′‐diiodobiphenyl‐4,4′‐dicarbonyl dichloride with some mono‐ and diamino compounds

Banihashemi¹,

Oboodi²

1980

Makromol. Chem.

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Several potentially thermostable polyamides were prepared. 2,2 '-Diiodobiphenyl-4,4 '-dicarboxylic acid and its diacid chloride 1 were synthesized. The latter was condensed with several amines, e.g., aniline, p-toluidine, pchloroaniline, and 2-aminopyridine, to prepare model compounds of polyamides testing the reactivity of the diacid dichloride 1 towards various amines, and to compare their spectra with those of the polymers. The polyamides themselves were prepared by solution and melt condensation of diacid chloride 1 with the following diamines: pphenylenediamine, m-phenylenediamine, 2,ddiaminotoIuene, benzidine, bis(rl-*nophenyl)methane, 4,4 '-diaminobiphenyl sulfone, and 3,3 '-diaminobenzophenone. The solubility of the polyamides in different solvents and their inherent viscosities were also measured. The values of the inherent viscosity were in the range of 0,l-1,9. The UV, IR, and 'H NMR spectra of the prepared polyamides were recorded. The melting points of the polymers were found to be higher than 360 "C and the thermogravimetric curves showed that the polymers are stable up to 400°C in air.

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Condensation polymerization of 2,2′‐diiodobiphenyl‐4,4′‐dicarbonyl dichloride with some mono‐ and diamino compounds

Banihashemi¹,

Oboodi²

1980

Makromol. Chem.

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Rigid‐Rod Polyamides from 3,3′‐bis(trifluoromethyl)‐4,4′‐diamino‐1,1′‐biphenyl

Kim

Byun

Lee

et al. 2015

Macro Chemistry & Physics

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A diamine monomer with trifl uoromethyl groups, 3,3′-bis(trifl uoromethyl)-4,4′-diamino-1,1′-biphenyl, is synthesized from 5-bromo-2-nitrobenzotrifl uoride with two steps. The model reaction with monofunctional benzoyl chloride at room temperature gives the model compound with a quantitative yield. The results of the model reaction indicate that the amine groups have suffi cient reactivity in spite of the presence of electron-withdrawing and bulky trifl uoromethyl group at the ortho position. The monomer is polymerized with terephthaloyl chloride and isophthaloyl chloride in N,N -dimethylacetamide (DMAc) or DMAc containing LiCl using pyridine as an acid acceptor at room temperature. All synthesized polymers are somewhat crystalline and colorless. While the meta-linked polyamide ( PA2 ) shows excellent solubility in polar aprotic solvents, the para-linked one ( PA1 ) is dissolved in polar aprotic solvents containing LiCl and concentrated H 2 SO 4 . They show good thermal and thermooxidative stability as well as high melting temperatures.

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Polyamides prepared from fluoroalkyl terephthalic acids

Malichenko¹,

Yangol²,

Zamulina³

et al. 1976

Polymer Science U.S.S.R.

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The synthesis and properties of fluorine containing polyamides (PA)

Cited by 3 publications

References 3 publications

Condensation polymerization of 2,2′‐diiodobiphenyl‐4,4′‐dicarbonyl dichloride with some mono‐ and diamino compounds

Condensation polymerization of 2,2′‐diiodobiphenyl‐4,4′‐dicarbonyl dichloride with some mono‐ and diamino compounds

Rigid‐Rod Polyamides from 3,3′‐bis(trifluoromethyl)‐4,4′‐diamino‐1,1′‐biphenyl

Polyamides prepared from fluoroalkyl terephthalic acids

Contact Info

Product

Resources

About

The synthesis and properties of fluorine containing polyamides (PA)

Cited by 3 publications

References 3 publications

Condensation polymerization of 2,2′‐diiodobiphenyl‐4,4′‐dicarbonyl dichloride with some mono‐ and diamino compounds

Condensation polymerization of 2,2′‐diiodobiphenyl‐4,4′‐dicarbonyl dichloride with some mono‐ and diamino compounds

Rigid‐Rod Polyamides from 3,3′‐bis­(trifluoromethyl)‐4,4′‐diamino‐1,1′‐biphenyl

Polyamides prepared from fluoroalkyl terephthalic acids

Contact Info

Product

Resources

About

Rigid‐Rod Polyamides from 3,3′‐bis(trifluoromethyl)‐4,4′‐diamino‐1,1′‐biphenyl