synthesis and characterization of easily processable polyaramides containing pendent diamantan moiety in the main chain
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ID: 233397
2008
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Abstract
Three new polyamides were synthesized by direct polycondensation of 1-6 bis(carboxy methyl diamantan with three different aromatic amines in Nmethyl 2-pyrrolidine containing lithium chloride using triphenyl phosphate and pyridine as condensing agent. 1-6 bis(carboxy methyl)diamantan was prepared from 1-6 dibromo diamantan and structure was conformed by 1H and 13C NNR spectroscopy. A comparison of the effect for introducing bulky side group in the diamine contribution was evaluated. This polyamide had inherent viscosity of 0.57-1.18dL/g. It was found that all polyamides were soluble in polar aprotic solvents. Thermal stability of polymer was evaluated by TGA analysis. Molecular weights of all polyamides were determined by gel permeation chromatography. These have been found to be thermally stable up to 400°C with 1320% weight loss under nitrogen atmosphere.
| Reference Key |
mukul2008e-journalsynthesis
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|---|---|
| Authors | ;M. K. Mukul;P. K. Srivastava |
| Journal | Journal of pharmaceutical and biomedical analysis |
| Year | 2008 |
| DOI |
10.1155/2008/573097
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| URL | |
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