Journal
POLYMER BULLETIN
Volume 57, Issue 6, Pages 945-952Publisher
SPRINGER
DOI: 10.1007/s00289-006-0646-8
Keywords
viscoelastic; dicyclopentadiene bisphenol dicyanate ester; epoxy; co-polymers
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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 T-g 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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