Effects of octa(3-chloroammoniumpropyl)octasilsesquioxane on the epoxy self-polymerisation and epoxy–amine curing

The effect of quaternary ammonium functionalised polyhedral oligomeric silsesquioxane (POSS) on the self-polymerisation of the diglycidyl ether of bisphenol A (DGEBA) and on the DGEBA–Jeffamine-T403 curing was investigated by differential scanning calorimetry. The acidic ammonium groups of POSS were...

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Bibliographic Details
Published in:Thermochimica acta 2009-07, Vol.491 (1), p.97-102
Main Authors: Perrin, F.X., Chaoui, N., Margaillan, A.
Format: Article
Language:English
Subjects:
Applied sciences
Chemical properties
Curing mechanism
Epoxy
Exact sciences and technology
Polymer industry, paints, wood
POSS
Properties and testing
Silsesquioxane
Technology of polymers
Thermosets
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Summary:The effect of quaternary ammonium functionalised polyhedral oligomeric silsesquioxane (POSS) on the self-polymerisation of the diglycidyl ether of bisphenol A (DGEBA) and on the DGEBA–Jeffamine-T403 curing was investigated by differential scanning calorimetry. The acidic ammonium groups of POSS were found to catalyze the self-polymerisation of DGEBA but termination reactions severely compete with the propagation and only low conversions in epoxy groups are attained (
ISSN:0040-6031
1872-762X
DOI:10.1016/j.tca.2009.03.009