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Network structure and thermomechanical properties of hybrid DGEBA networks cured with 1-methylimidazole and hyperbranched poly(ethyleneimine)s

Author
Fernandez-Francos, X.; Santiago, D.; Ferrando, F.; Ramis, X.; Salla, J.; Serra, M. À.; Sangermano, M.
Type of activity
Journal article
Journal
Journal of polymer science. Part B, polymer physics
Date of publication
2012-11-01
Volume
50
Number
21
First page
1489
Last page
1503
DOI
https://doi.org/10.1002/polb.23145 Open in new window
Repository
http://hdl.handle.net/2117/19611 Open in new window
Abstract
The use of commercially available hyperbranched poly(ethyleneimine)s (Lupasol TM , BASF) as polymeric modifiers in diglycidyl ether of bisphenol A thermosetting formulations using 1-methylimidazole (MI) as anionic initiator has been studied. Poly(ethyleneimine)s can get incorporated into the network structure by condensation of amine and epoxy groups. The excess, over-stoichiometric epoxy groups can undergo ani- onic homopolymerization initiated by MI. The thermal, dyna- momechanical, and mechan...
Citation
Fernández, X. [et al.]. Network structure and thermomechanical properties of hybrid DGEBA networks cured with 1-methylimidazole and hyperbranched poly(ethyleneimine)s. "Journal of polymer science. Part B, polymer physics", 01 Novembre 2012, vol. 50, núm. 21, p. 1489-1503.
Keywords
epoxy thermosets, hyperbranched, impact strength, mechanical properties, network structure, thermal properties, thermomechanical properties, thermosets
Group of research
POLTEPO - Thermosetting Epoxy Polymers

Participants