Synthesis and characterization of polyradicals with a polyimine backbone and nitronyl nitroxide side groups

Two polyimines with nitronyl nitroxide radicals in side groups were synthesized by reaction of 2-(3,5-diformylphenyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-1-oxyl 3-oxide with 1,3-phenylene diamine and 1,4-phenylene diamine, respectively. Spectroscopic techniques (FTIR, UV, 1H-NMR, MS, ESR)...

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Bibliographic Details
Published in:European polymer journal 1996-11, Vol.32 (11), p.1307-1312
Main Authors: Ragossnig, H., Saf, R., Hummel, K.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
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Summary:Two polyimines with nitronyl nitroxide radicals in side groups were synthesized by reaction of 2-(3,5-diformylphenyl)-4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazolyl-1-oxyl 3-oxide with 1,3-phenylene diamine and 1,4-phenylene diamine, respectively. Spectroscopic techniques (FTIR, UV, 1H-NMR, MS, ESR) and measurement of the magnetic properties were used for the characterization of the low molecular weight precursors and the polymers. In the thermal range 78–300 K the insoluble polyradicals were paramagnetic following Curie's law.
ISSN:0014-3057
1873-1945
DOI:10.1016/S0014-3057(96)00081-X