Chain-extended bismaleimides .1. Preparation and characterization of maleimide-terminated resins

Yerlikaya, Z
Oktem, Z
Bayramlı, Erdal
Starting from aromatic diamines, a series of bismaleimides (BMIs) and maleimide-terminated structural resins were prepared in solution and characterized. Maleimide-terminated resins were prepared through Michael addition reaction with 3/2 molar ratio of bismaleimide and aromatic diamine as reactants. The structural analysis was performed by FTIR and H-1-NMR spectroscopy. Thermal properties are investigated by TGA, DTA, and DSC. Number-average molecular-weights of the resins were determined by cryoscopy. The presence of methylene (-CH2-) and ether (-O-) groups in the starting materials affect the reactivity and the degree of chain extension of the resins. From the viscosity measurements it was also found that thermal polymerization of BMIs could be taking place together with the Michael addition. (C) 1996 John Wiley & Sons, Inc.


TINCER, T; COSKUN, M (1993-10-01)
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Saki, N; Dinc, T; Akkaya, EU (2006-03-13)
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The analytical solution of a nonlinear strain hardening preheated tube subjected to internal pressure is presented. A state of generalized plane strain, small deformations, and temperature gradients are assumed. The analytical plastic model is based on the incremental theory of plasticity, Tresca´s yield criterion, its associated flow rule, and a Swift-type nonlinear hardening law. Solutions for linearly hardening and perfectly plastic materials are also presented.
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Direct pyrolysis mass spectrometry technique was applied to investigate the characteristics of polylactide, (PLA) nanofibers containing organically modified montmorillonites, Cloisite 15A, (C15A) Cloisite 20A, (C20A) and Cloisite 30B, (GOB) prepared by electrospinning. As the amount of Cloisite present in the composites was increased, the fiber diameters became slightly narrower compared to neat PLA fiber due to the presence of quaternary ammonium salt as organic modifier increasing electrical conductivity....
Citation Formats
Z. Yerlikaya, Z. Oktem, and E. Bayramlı, “Chain-extended bismaleimides .1. Preparation and characterization of maleimide-terminated resins,” JOURNAL OF APPLIED POLYMER SCIENCE, pp. 165–171, 1996, Accessed: 00, 2020. [Online]. Available: