. 2018 Feb 16;10(12):9969–9979. doi: 10.1021/acsami.8b01294

Table 2. PEG–PCL-DA Hydrogel Characterization^*^,^#.

polymers	concentrations (%)	compressive modulus (kPa)	compressive stress at 80% strain (kPa)	water absorption (%)
PEG–PCL(24k)-DA	40	26.7 ± 4.5^a	356.8 ± 18.7^a	766 ± 18^a
	20	14.9 ± 3.1^b	162.5 ± 14.5^b	1184 ± 43^b
	10	10.7 ± 2.5^b	78.6 ± 4.5^c	1930 ± 140^c
PEG–PCL(22k)-DA	40	19.4 ± 1.5^a	-^##	971 ± 48^a
	20	8.9 ± 1.7^b	122.4 ± 2.3^a	1593 ± 51^b
	10	4.9 ± 0.4^c	45.0 ± 5.2^b	2504 ± 337^c
PEG-DA	40	9.2 ± 1.8^a	-^##	1692 ± 296^a
	20	4.7 ± 0.5^b	24.1 ± 2.7^a	2819 ± 292^b
	10	1.1 ± 0.2^c	8.8 ± 1.8^b	3798 ± 276^c

a, b, c represent significantly different groups for each characteristic. ^#The compression testing of hydrogels was carried out after immersion in PBS for 24 h. ^##The PEG-DA and PEG–PCL(22k)-DA hydrogels at 40% concentration were broken at 80% strain during the compressive test.

Table 2. PEG–PCL-DA Hydrogel Characterization*,#.

Table 2. PEG–PCL-DA Hydrogel Characterization^*^,^#.