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Preparation and characterization of hyperbranched polyaspartimides from bismaleimides and triamines

Preparation and characterization of hyperbranched polyaspartimides from bismaleimides and triamines Hyperbranched polyaspartimides were successfully prepared from bismaleimides (A2) and triamines (B3) through the Michael addition reaction. Two bismaleimides of 4,4′‐bismaleimidodiphenylmethane (BMDM) and bis(3‐ethyl‐5‐methyl‐4‐ maleimidophenyl)methane (BEMM) and two triamines of tris(3‐aminophenyl)phosphine oxide (TAPPO) and tris(4‐aminophenyl)amine (TAPA) were employed in the preparation of these hyperbranched polyaspartimides. The chemical structures of the polymers were characterized with Fourier transform infrared (FTIR), 1H and 31P NMR, and elemental analysis. Degrees of branching ranging from 0.51 to 0.69 were found with the polyaspartimides, ensuring their hyperbranched structure. The polymers also showed good solubility in common solvents, high glass‐transition temperatures of 256 °C, and excellent thermal stability above 370 °C. © 2004 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 5921–5928, 2004 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Polymer Science Part A Polymer Chemistry Wiley

Preparation and characterization of hyperbranched polyaspartimides from bismaleimides and triamines

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References (34)

Publisher
Wiley
Copyright
Copyright © 2004 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0887-624X
eISSN
1099-0518
DOI
10.1002/pola.20448
Publisher site
See Article on Publisher Site

Abstract

Hyperbranched polyaspartimides were successfully prepared from bismaleimides (A2) and triamines (B3) through the Michael addition reaction. Two bismaleimides of 4,4′‐bismaleimidodiphenylmethane (BMDM) and bis(3‐ethyl‐5‐methyl‐4‐ maleimidophenyl)methane (BEMM) and two triamines of tris(3‐aminophenyl)phosphine oxide (TAPPO) and tris(4‐aminophenyl)amine (TAPA) were employed in the preparation of these hyperbranched polyaspartimides. The chemical structures of the polymers were characterized with Fourier transform infrared (FTIR), 1H and 31P NMR, and elemental analysis. Degrees of branching ranging from 0.51 to 0.69 were found with the polyaspartimides, ensuring their hyperbranched structure. The polymers also showed good solubility in common solvents, high glass‐transition temperatures of 256 °C, and excellent thermal stability above 370 °C. © 2004 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 42: 5921–5928, 2004

Journal

Journal of Polymer Science Part A Polymer ChemistryWiley

Published: Jan 1, 2004

Keywords: ; ;

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