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Materiale Plastice
https://doi.org/10.37358/Mat.Plast.1964

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Materiale Plastice, Volume 43, Issue 1, pp. (2006)




Study and Synthesis of Aromatic Polyimides by Reaction of 3,3’-dimethyl-4,4’ -diaminodiphenylmethane


Abstract:
New aromatic polyimides have been synthesized by polycondensation reaction of 3,3’-dimethyl-4,4’-diaminodiphenylmethane with benzophenontetracarboxylic dianhydride or hexafluoroisopropylidene diphthalic anhydride in N-methylpyrrolidinone as a solvent, followed by chemical imidization in the presence of acetic anhydride and pyridine at 100°C for 4 h. The obtained polyimides presented excellent solubility, high thermal stability and good film forming ability. The degree of polyimides cure has been observed to have a profound influence on the films fluorescence . Keywords: 3,3’-dimethyl-4,4’-diaminodiphenylmethane; polyimides; solubility; cure; fluorescence



Issue: 2006 Volume 43, Number 1
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