10.1021/acssuschemeng.7b02292.s001
Thi Khanh Ly Nguyen
Thi Khanh Ly
Nguyen
Sébastien Livi
Sébastien
Livi
Bluma G. Soares
Bluma G.
Soares
Guilherme M. O. Barra
Guilherme M. O.
Barra
Jean-François Gérard
Jean-François
Gérard
Jannick Duchet-Rumeau
Jannick
Duchet-Rumeau
Development of Sustainable Thermosets from Cardanol-based
Epoxy Prepolymer and Ionic Liquids
American Chemical Society
2017
Ionic Liquids
surface energy
glass transition temperature
biobased
Cardanol-based Epoxy Prepolymer
phosphinate counteranions
IL
Sustainable Thermosets
Ionic liquids
prepolymer
2017-08-11 20:43:37
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Development_of_Sustainable_Thermosets_from_Cardanol-based_Epoxy_Prepolymer_and_Ionic_Liquids/5305501
In
this work, the development of new biobased epoxy networks using phosphonium-based
ionic liquids combined with dicyanamide and phosphinate counteranions
as initiators of epoxy prepolymers was compared with a biobased epoxy–amine
system. Ionic liquids (ILs) displayed high reactivity toward cardanol-based
epoxy prepolymers, and the obtained biobased epoxy/IL networks highlighted
a glass transition temperature of around 30 °C, an excellent
thermal stability higher than 450 °C and higher hydrophobic behavior
compared to biobased epoxy–amine networks. In addition, the
use of a cardanol-based epoxy prepolymer as a modifier of epoxy/IL
networks was also investigated. In this case, the final properties
of epoxy/IL networks were improved by the presence of biobased epoxy
compounds, especially their surface energy as well as their fracture
toughness (+180%), suggesting a new way to develop partially biobased
epoxy coatings.