Polyamides containing s-triazine rings and fluorene “cardo”groups: synthesis and characterization

Polyamides containing s-triazine rings and fluorene “cardo”groups: synthesis and characterization

Two new polyamides containing s-triazine rings and fluorene “cardo” groups were synthesized by low temperature interfacial polycondensation of two s-triazine ring containing diacyl chlorides viz. 2,4-bis(4-chlorocarbonylphenoxy)-6-methoxy- s-triazine and 2,4-bis(3-chlorocarbonylphenoxy)-6-methoxy- s...

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Bibliographic Details
Published in:European polymer journal Vol. 37; no. 7; pp. 1493 - 1498
Main Authors: Sagar, A.D, Shingte, R.D, Wadgaonkar, P.P, Salunkhe, M.M
Format: Journal Article
Language:English
Published: Oxford Elsevier Ltd 01-07-2001
Elsevier
Subjects:
Applied sciences
Exact sciences and technology
Fluorene cardo group
Organic polymers
Physicochemistry of polymers
Polyamide
Polycondensation
Preparation, kinetics, thermodynamics, mechanism and catalysts
s-triazine ring
Thermal stability
Polyamide
Fluorene cardo group
s-triazine ring
Thermal stability
Preparation
Aromatic polymer
Interfacial polymerization
Soluble compound
Head to head polymer
Triazine derivative polymer
Experimental study
Etheramide polymer
Fluorene derivatives
Cardo polymer
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Summary:Two new polyamides containing s-triazine rings and fluorene “cardo” groups were synthesized by low temperature interfacial polycondensation of two s-triazine ring containing diacyl chlorides viz. 2,4-bis(4-chlorocarbonylphenoxy)-6-methoxy- s-triazine and 2,4-bis(3-chlorocarbonylphenoxy)-6-methoxy- s-triazine with a cardo diamine viz. 9,9-bis(4-aminophenyl) fluorene. The resulting polyamides were characterized by elemental analysis, viscosity measurements, X-ray diffraction studies, thermogravimetry and IR, 1 H- and 13 C-NMR spectroscopy. The polyamides PA-1 and PA-2 had inherent viscosity values 0.52 and 0.60 dl/g respectively in N, N-dimethylacetamide (DMAc) at 30°C. Both the polyamides were found to be readily soluble at room temperature in polar solvents such as dimethylsulfoxide, DMAc, N, N-dimethylformamide, N-methyl-2-pyrrolidone and m-cresol. Transparent, tough and flexible films of polyamides could be cast from DMAc solution. Thermogravimetric analysis of the polyamides indicated no weight loss below 360°C under nitrogen atmosphere.
ISSN:0014-3057
1873-1945
DOI:10.1016/S0014-3057(00)00194-4