. Author manuscript; available in PMC: 2016 May 1.

Published in final edited form as: Macromol Chem Phys. 2015 Mar 19;216(10):1109–1119. doi: 10.1002/macp.201500010

Table 2.

Estimated effective crosslinking density (v_eff), effective functionality of crosslinks (f_eff), and molecular weight between crosslinks (M̄_c) for nanocomposite hydrogels.

pH	v _eff [mol m ⁻³]			f _eff			M̄_c [kDa]
	PAAm	PAAm-D	PAAm-ND	PAAm	PAAm-D	PAAm-ND	PAAm	PAAm-D	PAAm-ND
3.0	8.6 ± 1.2	30 ± 11	32 ± 5.8	45 ± 6.4	160 ± 56	170 ± 31	170 ± 24	55 ± 28	46 ± 7.7
5.0	8.0 ± 2.6	24 ± 4.9	55 ± 20^a)	42 ± 14	130 ± 26	290 ± 100*	190 ± 69	60 ± 13	30 ± 14^a)
7.4	1.2 ± 0.17	24 ± 8.0	38 ± 7.7^a)	6.5 ± 0.88	130 ± 43	200 ± 41*	1170 ± 160	64 ± 26	38 ± 8.4
9.0	2.9 ± 0.25	19 ± 4.6	23 ± 3.7	16 ± 1.3	100 ± 24	120 ± 19	490 ± 40	77 ± 17	62 ± 9.1

^a)

Denotes significance different from PAAm-D hydrogel for a given pH ( p < 0.05).