Synthesis, Characterization and Stability of Bismaleimides Containing Ester Groups in the Backbone

M. Sava “Petru Ponia” Institute of Macromolecular Chemistry Aleea Gr. Ghica, Voda No. 41A, RO-6600, IASI, Romania

C. Gaina “Petru Ponia” Institute of Macromolecular Chemistry Aleea Gr. Ghica, Voda No. 41A, RO-6600, IASI, Romania

V. Gaina “Petru Ponia” Institute of Macromolecular Chemistry Aleea Gr. Ghica, Voda No. 41A, RO-6600, IASI, Romania

C. Chiriac “Petru Ponia” Institute of Macromolecular Chemistry Aleea Gr. Ghica, Voda No. 41A, RO-6600, IASI, Romania

A. Stoleriu “Petru Ponia” Institute of Macromolecular Chemistry Aleea Gr. Ghica, Voda No. 41A, RO-6600, IASI, Romania

Abstract

A new series of bismaleimides containing ester groups in the backbone were synthesized from maleimido benzoic acid via its acid chloride with 4,4′-(hexa-fluoroisopropilidene)diphenol, 2,7-dihydroxynaphtalin, 1,3-dihydroxy-benzene and 4-hydroxyphenyl sulfone by simple condensation reaction. The monomers are characterized by IR, ¹H-NMR and elemental analysis. DSC studies of these bismaleimides indicated a curing exotherm in the temperature range 260–306°C with polymerization heat 92.9–139.6 J/g. Thermogravimetric analysis of the monomers showed high thermal stability for all bismaleimides.

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Synthesis, Characterization and Stability of Bismaleimides Containing Ester Groups in the Backbone

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Synthesis, Characterization and Stability of Bismaleimides Containing Ester Groups in the Backbone

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