Table 1. Effect of the DAh type on Mw, Mn, and PDI as Calculated from the Major Peak Obtained in GPC^a.

polymer	Mw (g/mol)	Mn (g/mol)	PDI	DSC-Tg (°C)	rheology-Tg (°C)	BDS-Tgd (°C)	TGA T (2% weight loss) (°C)	density (g/cm3)
BPADA-D	29k	18k	1.6	24	36	20	360	1.05
ODPA-D	32k	16k	2.0	13	25	11	380	1.05
6FDA-D	41k	20k	2.0	25	40	21	330	1.12
BPDA-D	37k	20k	1.9	22	33e, 46e	18	350	1.05

^aT_g obtained from DSC, rheology, and BDS and temperatures for 2% weight loss obtained from TGA. Samples were tested as produced.

^bT_g was calculated from the 2nd heating curve, 10 °C/min.

^cT_g was taken as the maximum of the peak in the tan δ curve from the temperature sweeps, performed in cooling ramp, 1 °C/min.

^dT_g is obtained from the broadband dielectric spectroscopy (BDS) measurements, by extrapolating the VFT fit to the temperature at which τ_max is equal to 100 s (see Figure S5, Supporting Information).

^ePolymer BPDA-D exhibits two T_g peaks [T_g (I) and T_g (II)] in rheological temperature sweep plots, which is shown and discussed later in the article.