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Sequential curing of off-stoichiometric thiol-epoxy thermosets with a custom-tailored structure

Author
Fernandez-Francos, X.; Konuray, A.; Belmonte, A.; de la Flor, S.; Serra, M. À.; Ramis, X.
Type of activity
Journal article
Journal
Polymer chemistry
Date of publication
2016-01-01
Volume
7
Number
12
First page
2280
Last page
2290
DOI
https://doi.org/10.1039/c6py00099a Open in new window
Repository
http://hdl.handle.net/2117/87307 Open in new window
URL
http://pubs.rsc.org/en/content/articlepdf/2016/py/c6py00099a Open in new window
Abstract
A new dual-curing system based on sequential thiol-epoxy click polycondensation and epoxy anionic homopolymerization was studied. Formulations of diglycidyl ether of bisphenol A and trimethylolpropane tris(3-mercaptopropionate) with 1-methylimidazole as a base catalyst and excess of epoxy groups were prepared and characterized. The curing process is sequential: fast thiol-epoxy polycondensation takes place first, followed by slower homopolymerization of excess epoxy groups. This makes it possibl...
Citation
Fernandez-Francos, X., Konuray, A., Belmonte, A., de la Flor, S., Serra, À., Ramis, X. Sequential curing of off-stoichiometric thiol-epoxy thermosets with a custom-tailored structure. "Polymer chemistry", 01 Gener 2016, vol. 7, núm. 12, p. 2280-2290.
Keywords
Click reaction, Diglycidyl ether, Hyperbranched poly(ethyleneimine)s, Kinetic-analysis, Network structure, Shape-memory, Simultaneous etherification, Systems, Tertiary-amines, Thermal-properties
Group of research
POLTEPO - Thermosetting Epoxy Polymers

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