Table 2.

Material properties of poly(urethane acrylate) aerogels with aromatic core before (aR-PUAc-xx) and after (aR-PUAc-xx-C) ¹ pyrolysis.

Sample	Skeletal Density ρs (g cm−3)	BET Surf. Area σ (m2 g−1) [Micropore Surf. Area] 2	Quantity of CO2 Adsorbed (mmoL g−1)
aR-PUAc-1.5	1.40 ± 0.01	488 [38]	0.63
aR-PUAc-1.5-C	2.0 ± 0.1	171 [154]	1.09
aR-PUAc-6	1.454 ± 0.004	374 [18]	0.97
aR-PUAc-6-C	2.15 ± 0.03	639 [360]	2.50
aR-PUAc-12	1.414 ± 0.006	311 [2]	0.84
aR-PUAc-12-C	2.3 ± 0.1	739 [429]	0.99

¹ Pyrolyzed at 800 °C for 5 h under flowing Ar. ² Micropore surface area via t-plot analysis, according to the Harkins and Jura model.