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Dynamic viscoelasticity data (tan δ) for thermally cured polybenzoxazines: (a) PBA-a), (b) PBA-a with 5 wt % TDP, (c) PBA-a with 10 wt % TDP, and (d) PBA-a with 10 wt % (TDA). N.B.: scale relates to plot (a) other data offset progressively downward by 1.0 for clarity.
