Viscoelastic, Thermal and Mechanical Properties of Dicyclopentadiene Bisphenol Diyanate Ester / Epoxy Co-polymers |
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Authors: | Jieliang Wang Guozheng Liang Wen Zhao Zengping Zhang |
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Affiliation: | (1) Department of Applied Chemistry, School of Science, Northwestern Polytechnical University, Xi’an Shaanxi, 710072, China |
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Abstract: | Summary Dicyanate ester containing dicyclopentadiene cycles and epoxy co-polymers were prepared by copolymerization between epoxy
and dicyclopentadiene bisphenol cyanate esters (DCPDCE). Viscoelastic properties of the co-polymers were characterized by
the technique of dynamic mechanical analysis (DMA), which indicated that the introduction of E51 in the co-polymers would
effectively improve the toughness of DCPDCE, while the thermal dimensional stability would be weakened. Results from thermogravimetric
analysis (TGA) are in good accordance with the Tg values from DMA curves. Mechanical testing of the cured co-polymers shows that E51 can improve the mechanical properties
of the co-polymers while its usage is controlled among 5% to 15%. |
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Keywords: | Viscoelastic dicyclopentadiene bisphenol dicyanate ester epoxy co-polymers |
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