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Authors Jyotishkumar, P. ; Pionteck, J. ; Häßler, R. ; Adam, G. ; Thomas, S.
Title Poly(acrylonitrile-butadiene-styrene) modified epoxy - amine systems analyzed by FTIR and modulated DSC
Date 27.09.2012
Number 31768
Abstract Epoxy networks based on diglycidyl ether of bisphenol A (DGEBA) and diamino diphenyl sulfone (DDS) as curing agent were prepared in the presence of poly(acrylonitrile-butadiene-styrene) (ABS). Blends containing 3.6, 6.9, 10, and 12.9 wt% ABS were obtained by a melt mixing technique. Infrared spectroscopy was employed to follow the curing progress by determining the decrease of the band intensity caused by the epoxide groups. The evolution of glass transition temperatures (T g) and heat of reaction (·H) of the blends cured for different times were studied in detail by modulated DSC and used for evaluation of the overall curing degree. The increase in the epoxy network density was detected from the magnitude of the decrease in heat capacity change at T g, which reduces with conversion. The addition of ABS decreases the degree of cure and the epoxy network density due to the dilution of the reactants with the thermoplastic.
Publisher Journal of Macromolecular Science Part B - Physics
Wikidata
Citation Journal of Macromolecular Science Part B - Physics 51 (2012) 1425-1436
DOI https://doi.org/10.1080/00222348.2011.629853
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